{ "id": 587344, "title": "Some cheating teams！！！", "url": "/competitions/waveform-inversion/discussion/587344", "author_name": "Han", "post_date": "2025-06-30T17:02:50.803000", "votes": 28, "comment_count": 30, "views": 0, "content": "

A few days ago, I noticed some \"suspected cheating\" teams (selling accounts with medals). However, based on their behavior today, there is no doubt they are cheating. These teams are being controlled by an individual or group as \"zombie accounts\" specifically used for account reselling.

\n

Evidence of Cheating

\n\n

Screenshots for Reference

\n
    \n

  1. Two Days Ago
    \nThe following screenshot shows the scores, submission times, and submission counts of these suspected cheating teams from two days ago:
    \n\"Figure

    2. \n

  2. Today
    \nThis screenshot shows the scores, submission times, and submission counts of the same teams today. Note how their submission times and scores are almost identical, further confirming the cheating behavior:

    3. \n
\n

\"Figure2\"

\n

Please thoroughly investigate these teams! @addisonhoward @ryanholbrook @sohier

\n

These \"zombie users\": @boyuanyao @chenyaqi1 @haotianxue1214 @zihewang123456 @zhuangchengyu @chenwancong @gege2025 @qiaosenxu @muyvyangguangguo @amiaoghg @huahai999 @rongchenbao @shengqidai @noobanot @submitcsv @jackhou222 @stephanieyue1992 @pengjiankun @adwwgwq23412421 @yfr999 @yanfengli666 @thomasliu369 @kagglejason5 @huayuliu3 @senhaozaho @lyon9769 @logmax @kaixinwang1110 @sakarush @ryogofunahashi @nakaso @mohanzeng @frederick2313072 @extremenation …

", "messages": [ { "id": 3236828, "postDate": "2025-06-30T17:02:50.803Z", "content": "

A few days ago, I noticed some \"suspected cheating\" teams (selling accounts with medals). However, based on their behavior today, there is no doubt they are cheating. These teams are being controlled by an individual or group as \"zombie accounts\" specifically used for account reselling.

\n

Evidence of Cheating

\n\n

Screenshots for Reference

\n
    \n

  1. Two Days Ago
    \nThe following screenshot shows the scores, submission times, and submission counts of these suspected cheating teams from two days ago:
    \n\"Figure

    2. \n

  2. Today
    \nThis screenshot shows the scores, submission times, and submission counts of the same teams today. Note how their submission times and scores are almost identical, further confirming the cheating behavior:

    3. \n
\n

\"Figure2\"

\n

Please thoroughly investigate these teams! @addisonhoward @ryanholbrook @sohier

\n

These \"zombie users\": @boyuanyao @chenyaqi1 @haotianxue1214 @zihewang123456 @zhuangchengyu @chenwancong @gege2025 @qiaosenxu @muyvyangguangguo @amiaoghg @huahai999 @rongchenbao @shengqidai @noobanot @submitcsv @jackhou222 @stephanieyue1992 @pengjiankun @adwwgwq23412421 @yfr999 @yanfengli666 @thomasliu369 @kagglejason5 @huayuliu3 @senhaozaho @lyon9769 @logmax @kaixinwang1110 @sakarush @ryogofunahashi @nakaso @mohanzeng @frederick2313072 @extremenation …

", "rawMarkdown": "A few days ago, I noticed some **\"suspected cheating\" teams** (selling accounts with medals). However, based on their behavior today, there is **no doubt** they are cheating. These teams are being controlled by an individual or group as **\"zombie accounts\"** specifically used for account reselling.\n\n### Evidence of Cheating\n- **Identical or similar scores** across multiple accounts.\n- **Matching submission times and counts**, which are highly unusual.\n- The patterns are too consistent to be coincidental—this is clearly cheating.\n\n### Screenshots for Reference\n1. **Two Days Ago** \n The following screenshot shows the **scores, submission times, and submission counts** of these suspected cheating teams from two days ago: \n ![Figure 1](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F20801798%2F3ae33d8dcb1c18b2bd5bfad75a22b89b%2FGBCTCS0(XUO8MWLNX.png?generation=1751301610586960&alt=media)\n\n2. **Today** \n This screenshot shows the **scores, submission times, and submission counts** of the same teams today. Note how their submission times and scores are **almost identical**, further confirming the cheating behavior: \n\n![Figure2](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F20801798%2F3484c58d2bd9fdce8b0056a07928e168%2F1.png?generation=1751302942773160&alt=media)\n\nPlease thoroughly investigate these teams! @addisonhoward @ryanholbrook @sohier\n\n\nThese \"zombie users\": @boyuanyao @chenyaqi1 @haotianxue1214 @zihewang123456 @zhuangchengyu @chenwancong @gege2025 @qiaosenxu @muyvyangguangguo @amiaoghg @huahai999 @rongchenbao @shengqidai @noobanot @submitcsv @jackhou222 @stephanieyue1992 @pengjiankun @adwwgwq23412421 @yfr999 @yanfengli666 @thomasliu369 @kagglejason5 @huayuliu3 @senhaozaho @lyon9769 @logmax @kaixinwang1110 @sakarush @ryogofunahashi @nakaso @mohanzeng @frederick2313072 @extremenation ...", "votes": 28 }, { "id": 3237507, "postDate": "2025-07-01T06:20:10.690Z", "content": "

Thank you for raising this topic. I have also noticed the teams with the same score that started to appear a few days ago. I suspected that the solution might be available online, so I found this interesting webpage:\"\"
\nIt is not clear what they were selling exactly, but the price was 516$. The page is now gone, but I have the address and the screenshot left.

", "rawMarkdown": "Thank you for raising this topic. I have also noticed the teams with the same score that started to appear a few days ago. I suspected that the solution might be available online, so I found this interesting webpage:![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F3348210%2Fb4fa91955fd9592dbf9d366485f679cf%2FScreenshot%20(348).png?generation=1751350453691144&alt=media)\nIt is not clear what they were selling exactly, but the price was 516$. The page is now gone, but I have the address and the screenshot left.", "votes": 13, "replies": [ { "id": 3238025, "postDate": "2025-07-01T13:21:57.153Z", "content": "

This is the first time in my life seeing someone \"sell\" the competition.

", "rawMarkdown": "This is the first time in my life seeing someone \"sell\" the competition.", "votes": 1 }, { "id": 3239002, "postDate": "2025-07-02T11:41:04.437Z", "content": "

Have you tried using TheWaybackMachine or any other archiving service on that link? You mind mentioning it in this discussion forum?

", "rawMarkdown": "Have you tried using TheWaybackMachine or any other archiving service on that link? You mind mentioning it in this discussion forum?" } ] }, { "id": 3237267, "postDate": "2025-07-01T02:28:00.600Z", "content": "

I was shocked to find that my team member's name was included in this post. We have never engaged in any form of cheating or account sharing. We participated in this competition fairly and put in a lot of effort to improve our solution.

\n

It's unfortunate that some people are being publicly accused without any solid proof. Similar submission patterns can occur naturally when teams work hard and iterate frequently, especially towards the end of a competition. Jumping to conclusions based solely on submission time or score similarity is not a fair assessment.

\n

I respectfully request that you reconsider this public accusation and let the Kaggle compliance team handle the matter professionally and objectively. Publicly shaming individuals without verified evidence damages the community and discourages honest participants.

\n

Thank you.

", "rawMarkdown": "I was shocked to find that my team member's name was included in this post. We have never engaged in any form of cheating or account sharing. We participated in this competition fairly and put in a lot of effort to improve our solution.\n\nIt's unfortunate that some people are being publicly accused without any solid proof. Similar submission patterns can occur naturally when teams work hard and iterate frequently, especially towards the end of a competition. Jumping to conclusions based solely on submission time or score similarity is not a fair assessment.\n\nI respectfully request that you reconsider this public accusation and let the Kaggle compliance team handle the matter professionally and objectively. Publicly shaming individuals without verified evidence damages the community and discourages honest participants.\n\nThank you.", "votes": 11 }, { "id": 3236896, "postDate": "2025-06-30T18:17:37.353Z", "content": "

why am i on the list? me and mudesteven worked hard for our 25.0 : (

", "rawMarkdown": "why am i on the list? me and mudesteven worked hard for our 25.0 : (", "votes": 9 }, { "id": 3236844, "postDate": "2025-06-30T17:27:30.433Z", "content": "

It is better to contact compliance@kagge.com than publicly shame people IMHO. Now that you have done it, don't remove it.

\n

You could be right, but Kaggle compliance team is the one deciding on this.

\n

I am not part of Kaggle, this is just a friendly advice.

", "rawMarkdown": "It is better to contact compliance@kagge.com than publicly shame people IMHO. Now that you have done it, don't remove it.\n\nYou could be right, but Kaggle compliance team is the one deciding on this.\n\nI am not part of Kaggle, this is just a friendly advice.", "votes": 5, "replies": [ { "id": 3236859, "postDate": "2025-06-30T17:44:26.203Z", "content": "

Thank you for your suggestion. I will forward it to the Kaggle team.

", "rawMarkdown": "Thank you for your suggestion. I will forward it to the Kaggle team.", "votes": 1 } ] }, { "id": 3392890, "postDate": "2026-01-17T17:57:46.307Z", "content": "

Agree with you

", "rawMarkdown": "Agree with you", "votes": -1 }, { "id": 3237296, "postDate": "2025-07-01T02:50:24.857Z", "content": "

This competition's score is only kept on 1 decimal places, so it's relatively normal for the same LB scores.

", "rawMarkdown": "This competition's score is only kept on 1 decimal places, so it's relatively normal for the same LB scores.", "replies": [ { "id": 3238220, "postDate": "2025-07-01T16:41:37.073Z", "content": "

Now the score is kept on 5 decimal places. We can check that these teams scores are different.

", "rawMarkdown": "Now the score is kept on 5 decimal places. We can check that these teams scores are different.", "replies": [ { "id": 3238464, "postDate": "2025-07-01T20:54:14.550Z", "content": "

And exactly how probable is like ten scores exactly 25.62894? But those are out of medal so nothing wrong with that I guess.

", "rawMarkdown": "And exactly how probable is like ten scores exactly 25.62894? But those are out of medal so nothing wrong with that I guess.", "votes": 3 }, { "id": 3239148, "postDate": "2025-07-02T14:37:06.160Z", "content": "

Yes, now we can check that the differences between teams in those blue-green clusters are really very small.
\nHere more decimal places don't solve anything, no 2 teams would submit exactly the same dataframe unless it is a public solution.
\nUnfortunately this is not a code competition and thus proving any false play would be much more difficult than in code competitions when you have to submit your code.
\nAt least for me a lesson for future is to avoid non-code competitions no matter how personally interesting the topic is.

", "rawMarkdown": "Yes, now we can check that the differences between teams in those blue-green clusters are really very small. \nHere more decimal places don't solve anything, no 2 teams would submit exactly the same dataframe unless it is a public solution.\nUnfortunately this is not a code competition and thus proving any false play would be much more difficult than in code competitions when you have to submit your code.\nAt least for me a lesson for future is to avoid non-code competitions no matter how personally interesting the topic is. ", "votes": 2 } ] }, { "id": 3239601, "postDate": "2025-07-03T01:45:06.263Z", "content": "

Suspicious..

", "rawMarkdown": "Suspicious.. " } ] }, { "id": 3237059, "postDate": "2025-06-30T21:37:01.470Z", "content": "

Oh, I'm in the suspected guys group!
\nAnyway, I believe most of the other participants around our teams on LB just took a similay approach without private sharing.
\n(this is because our solution is not so novel and not so hard to come up with one)

", "rawMarkdown": "Oh, I'm in the suspected guys group!\nAnyway, I believe most of the other participants around our teams on LB just took a similay approach without private sharing. \n(this is because our solution is not so novel and not so hard to come up with one)", "votes": 1 }, { "id": 3236948, "postDate": "2025-06-30T19:08:41.940Z", "content": "

This is serious stuff. I would report it more to Kaggle themselves then go public. I think it just looks better, especially if it's not confirmed.

", "rawMarkdown": "This is serious stuff. I would report it more to Kaggle themselves then go public. I think it just looks better, especially if it's not confirmed.", "votes": -3 }, { "id": 3236903, "postDate": "2025-06-30T18:23:02.007Z", "content": "

Better to report to compliance@kaggle.com than call out publicly. Not part of Kaggle — just a friendly tip.

", "rawMarkdown": "Better to report to compliance@kaggle.com than call out publicly. Not part of Kaggle — just a friendly tip.", "votes": -5 }, { "id": 3236857, "postDate": "2025-06-30T17:43:52.873Z", "content": "

As I mentioned, they submitted their solutions and increased their scores almost simultaneously, and the fact that two teams engaged in cheating has validated my statement.

\n

\"\"

", "rawMarkdown": "As I mentioned, they submitted their solutions and increased their scores almost simultaneously, and the fact that two teams engaged in cheating has validated my statement.\n\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F20801798%2Fd84bd0523010279a1894a88c0b7190cb%2F9INXO_((TR1HWV0NAH.png?generation=1751305418789363&alt=media)", "votes": -1 }, { "id": 3239617, "postDate": "2025-07-03T02:16:45.700Z", "content": "

I tried very very hard to beat 28.8 (200+ versions)and failed. and these accounts are taking all the fun out of the whole experience. Hope the kaggle team could do something.

", "rawMarkdown": "I tried very very hard to beat 28.8 (200+ versions)and failed. and these accounts are taking all the fun out of the whole experience. Hope the kaggle team could do something." }, { "id": 3239078, "postDate": "2025-07-02T13:16:36.607Z", "content": "

i am agree with you but your reason are not valid to identify cheater's

", "rawMarkdown": "i am agree with you but your reason are not valid to identify cheater's" }, { "id": 3237734, "postDate": "2025-07-01T09:15:49.290Z", "content": "

@tianyihan7561 https://www.kaggle.com/competitions/jane-street-real-time-market-data-forecasting/discussion/586090

\n

There is also this game, which is more popular than the earthquake wave game.

", "rawMarkdown": "@tianyihan7561 https://www.kaggle.com/competitions/jane-street-real-time-market-data-forecasting/discussion/586090\n\nThere is also this game, which is more popular than the earthquake wave game." }, { "id": 3237113, "postDate": "2025-06-30T23:33:11.727Z", "content": "

I agree and I have seen this pattern in multiple competitions now. Some teams are clearly cheating (you always find clusters of novice / contributor accounts that have created their account few weeks before the deadline). However top Kagglers don’t really care since cheaters never come too close to the gold zone.

", "rawMarkdown": "I agree and I have seen this pattern in multiple competitions now. Some teams are clearly cheating (you always find clusters of novice / contributor accounts that have created their account few weeks before the deadline). However top Kagglers don’t really care since cheaters never come too close to the gold zone.", "replies": [ { "id": 3237118, "postDate": "2025-06-30T23:51:28.893Z", "content": "

Don't be so sure, check out some of the recently completed competitions and you'll find that things are more ridiculous than you think😐Anyway, I hate them because they are breaking the community and making my achievements questionable.

", "rawMarkdown": "Don't be so sure, check out some of the recently completed competitions and you'll find that things are more ridiculous than you think😐Anyway, I hate them because they are breaking the community and making my achievements questionable.", "votes": 2, "replies": [ { "id": 3237119, "postDate": "2025-06-30T23:54:25.933Z", "content": "

Exactly, it’s really a shame

", "rawMarkdown": "Exactly, it’s really a shame ", "votes": 1 }, { "id": 3237120, "postDate": "2025-06-30T23:57:31.350Z", "content": "
\n

and making my achievements questionable.

\n
\n

I doubt anyone can make your achievements questionable. The cheaters are in silver range at best. You on the other hand…

", "rawMarkdown": ">and making my achievements questionable. \n\nI doubt anyone can make your achievements questionable. The cheaters are in silver range at best. You on the other hand...", "votes": -1 }, { "id": 3237134, "postDate": "2025-07-01T00:09:14.397Z", "content": "
\n

The cheaters are in silver range at best.

\n
\n

Mostly, but not exactly. That's why I say things are more ridiculous than you think

\n

Aside from that, imagine that the first impression people have of kaggle is that it's a trading platform for background improvement. When they see your account, the first thing come into their mind is not how much effort you've put into it, but how much money you paid to buy it.

", "rawMarkdown": "> The cheaters are in silver range at best. \n\nMostly, but not exactly. That's why I say things are more ridiculous than you think\n\nAside from that, imagine that the first impression people have of kaggle is that it's a trading platform for background improvement. When they see your account, the first thing come into their mind is not how much effort you've put into it, but how much money you paid to buy it. ", "votes": 1 } ] } ] }, { "id": 3392887, "postDate": "2026-01-17T17:50:35.563Z", "rawMarkdown": "", "isDeleted": true, "replies": [ { "id": 3392900, "postDate": "2026-01-17T18:28:40.313Z", "rawMarkdown": "", "isDeleted": true, "replies": [ { "id": 3392902, "postDate": "2026-01-17T18:30:22.790Z", "rawMarkdown": "", "isDeleted": true } ] } ] }, { "id": 3237097, "postDate": "2025-06-30T23:14:15.543Z", "rawMarkdown": "", "isDeleted": true }, { "id": 3237090, "postDate": "2025-06-30T22:49:18.307Z", "rawMarkdown": "", "votes": 1, "isDeleted": true } ], "comments": [ { "id": 3237507, "author_name": "Sviatoslav Bilokin", "author_url": "", "post_date": "2025-07-01T06:20:10.690000", "content": "

Thank you for raising this topic. I have also noticed the teams with the same score that started to appear a few days ago. I suspected that the solution might be available online, so I found this interesting webpage:\"\"
\nIt is not clear what they were selling exactly, but the price was 516$. The page is now gone, but I have the address and the screenshot left.

", "votes": 13, "replies": [ { "id": 3238025, "author_name": "Tom", "author_url": "", "post_date": "2025-07-01T13:21:57.153000", "content": "

This is the first time in my life seeing someone \"sell\" the competition.

", "votes": 1, "replies": [] }, { "id": 3239002, "author_name": "Ikansh Mahajan", "author_url": "", "post_date": "2025-07-02T11:41:04.437000", "content": "

Have you tried using TheWaybackMachine or any other archiving service on that link? You mind mentioning it in this discussion forum?

", "votes": 0, "replies": [] } ] }, { "id": 3237267, "author_name": "kura54", "author_url": "", "post_date": "2025-07-01T02:28:00.600000", "content": "

I was shocked to find that my team member's name was included in this post. We have never engaged in any form of cheating or account sharing. We participated in this competition fairly and put in a lot of effort to improve our solution.

\n

It's unfortunate that some people are being publicly accused without any solid proof. Similar submission patterns can occur naturally when teams work hard and iterate frequently, especially towards the end of a competition. Jumping to conclusions based solely on submission time or score similarity is not a fair assessment.

\n

I respectfully request that you reconsider this public accusation and let the Kaggle compliance team handle the matter professionally and objectively. Publicly shaming individuals without verified evidence damages the community and discourages honest participants.

\n

Thank you.

", "votes": 11, "replies": [] }, { "id": 3236896, "author_name": "noobanot", "author_url": "", "post_date": "2025-06-30T18:17:37.353000", "content": "

why am i on the list? me and mudesteven worked hard for our 25.0 : (

", "votes": 9, "replies": [] }, { "id": 3236844, "author_name": "CPMP", "author_url": "", "post_date": "2025-06-30T17:27:30.433000", "content": "

It is better to contact compliance@kagge.com than publicly shame people IMHO. Now that you have done it, don't remove it.

\n

You could be right, but Kaggle compliance team is the one deciding on this.

\n

I am not part of Kaggle, this is just a friendly advice.

", "votes": 5, "replies": [ { "id": 3236859, "author_name": "Han", "author_url": "", "post_date": "2025-06-30T17:44:26.203000", "content": "

Thank you for your suggestion. I will forward it to the Kaggle team.

", "votes": 1, "replies": [] } ] }, { "id": 3392890, "author_name": "Khushi Yadav", "author_url": "", "post_date": "2026-01-17T17:57:46.307000", "content": "

Agree with you

", "votes": -1, "replies": [] }, { "id": 3237296, "author_name": "I2nfinit3y", "author_url": "", "post_date": "2025-07-01T02:50:24.857000", "content": "

This competition's score is only kept on 1 decimal places, so it's relatively normal for the same LB scores.

", "votes": 0, "replies": [ { "id": 3238220, "author_name": "I2nfinit3y", "author_url": "", "post_date": "2025-07-01T16:41:37.073000", "content": "

Now the score is kept on 5 decimal places. We can check that these teams scores are different.

", "votes": 0, "replies": [ { "id": 3238464, "author_name": "Ángel Jacinto Sánchez Ruiz", "author_url": "", "post_date": "2025-07-01T20:54:14.550000", "content": "

And exactly how probable is like ten scores exactly 25.62894? But those are out of medal so nothing wrong with that I guess.

", "votes": 3, "replies": [] }, { "id": 3239148, "author_name": "Allie K.", "author_url": "", "post_date": "2025-07-02T14:37:06.160000", "content": "

Yes, now we can check that the differences between teams in those blue-green clusters are really very small.
\nHere more decimal places don't solve anything, no 2 teams would submit exactly the same dataframe unless it is a public solution.
\nUnfortunately this is not a code competition and thus proving any false play would be much more difficult than in code competitions when you have to submit your code.
\nAt least for me a lesson for future is to avoid non-code competitions no matter how personally interesting the topic is.

", "votes": 2, "replies": [] } ] }, { "id": 3239601, "author_name": "Mehwish", "author_url": "", "post_date": "2025-07-03T01:45:06.263000", "content": "

Suspicious..

", "votes": 0, "replies": [] } ] }, { "id": 3237059, "author_name": "Harui-ig", "author_url": "", "post_date": "2025-06-30T21:37:01.470000", "content": "

Oh, I'm in the suspected guys group!
\nAnyway, I believe most of the other participants around our teams on LB just took a similay approach without private sharing.
\n(this is because our solution is not so novel and not so hard to come up with one)

", "votes": 1, "replies": [] }, { "id": 3236948, "author_name": "Simon Taylor", "author_url": "", "post_date": "2025-06-30T19:08:41.940000", "content": "

This is serious stuff. I would report it more to Kaggle themselves then go public. I think it just looks better, especially if it's not confirmed.

", "votes": -3, "replies": [] }, { "id": 3236903, "author_name": "M- Zohaib-KH", "author_url": "", "post_date": "2025-06-30T18:23:02.007000", "content": "

Better to report to compliance@kaggle.com than call out publicly. Not part of Kaggle — just a friendly tip.

", "votes": -5, "replies": [] }, { "id": 3236857, "author_name": "Han", "author_url": "", "post_date": "2025-06-30T17:43:52.873000", "content": "

As I mentioned, they submitted their solutions and increased their scores almost simultaneously, and the fact that two teams engaged in cheating has validated my statement.

\n

\"\"

", "votes": -1, "replies": [] }, { "id": 3239617, "author_name": "Lei Wang", "author_url": "", "post_date": "2025-07-03T02:16:45.700000", "content": "

I tried very very hard to beat 28.8 (200+ versions)and failed. and these accounts are taking all the fun out of the whole experience. Hope the kaggle team could do something.

", "votes": 0, "replies": [] }, { "id": 3239078, "author_name": "Nishuxf", "author_url": "", "post_date": "2025-07-02T13:16:36.607000", "content": "

i am agree with you but your reason are not valid to identify cheater's

", "votes": 0, "replies": [] }, { "id": 3237734, "author_name": "songling", "author_url": "", "post_date": "2025-07-01T09:15:49.290000", "content": "

@tianyihan7561 https://www.kaggle.com/competitions/jane-street-real-time-market-data-forecasting/discussion/586090

\n

There is also this game, which is more popular than the earthquake wave game.

", "votes": 0, "replies": [] }, { "id": 3237113, "author_name": "Julien Genzling", "author_url": "", "post_date": "2025-06-30T23:33:11.727000", "content": "

I agree and I have seen this pattern in multiple competitions now. Some teams are clearly cheating (you always find clusters of novice / contributor accounts that have created their account few weeks before the deadline). However top Kagglers don’t really care since cheaters never come too close to the gold zone.

", "votes": 0, "replies": [ { "id": 3237118, "author_name": "Filtered", "author_url": "", "post_date": "2025-06-30T23:51:28.893000", "content": "

Don't be so sure, check out some of the recently completed competitions and you'll find that things are more ridiculous than you think😐Anyway, I hate them because they are breaking the community and making my achievements questionable.

", "votes": 2, "replies": [ { "id": 3237119, "author_name": "Julien Genzling", "author_url": "", "post_date": "2025-06-30T23:54:25.933000", "content": "

Exactly, it’s really a shame

", "votes": 1, "replies": [] }, { "id": 3237120, "author_name": "greySnow", "author_url": "", "post_date": "2025-06-30T23:57:31.350000", "content": "
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and making my achievements questionable.

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I doubt anyone can make your achievements questionable. The cheaters are in silver range at best. You on the other hand…

", "votes": -1, "replies": [] }, { "id": 3237134, "author_name": "Filtered", "author_url": "", "post_date": "2025-07-01T00:09:14.397000", "content": "
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The cheaters are in silver range at best.

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Mostly, but not exactly. That's why I say things are more ridiculous than you think

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Aside from that, imagine that the first impression people have of kaggle is that it's a trading platform for background improvement. When they see your account, the first thing come into their mind is not how much effort you've put into it, but how much money you paid to buy it.

", "votes": 1, "replies": [] } ] } ] }, { "id": 3392887, "author_name": "", "author_url": "", "post_date": "2026-01-17T17:50:35.563000", "content": "", "votes": 0, "replies": [ { "id": 3392900, "author_name": "", "author_url": "", "post_date": "2026-01-17T18:28:40.313000", "content": "", "votes": 0, "replies": [ { "id": 3392902, "author_name": "", "author_url": "", "post_date": "2026-01-17T18:30:22.790000", "content": "", "votes": 0, "replies": [] } ] } ] }, { "id": 3237097, "author_name": "", "author_url": "", "post_date": "2025-06-30T23:14:15.543000", "content": "", "votes": 0, "replies": [] }, { "id": 3237090, "author_name": "", "author_url": "", "post_date": "2025-06-30T22:49:18.307000", "content": "", "votes": 1, "replies": [] } ], "raw_markdown_by_id": { "3236828": "A few days ago, I noticed some **\"suspected cheating\" teams** (selling accounts with medals). However, based on their behavior today, there is **no doubt** they are cheating. These teams are being controlled by an individual or group as **\"zombie accounts\"** specifically used for account reselling.\n\n### Evidence of Cheating\n- **Identical or similar scores** across multiple accounts.\n- **Matching submission times and counts**, which are highly unusual.\n- The patterns are too consistent to be coincidental—this is clearly cheating.\n\n### Screenshots for Reference\n1. **Two Days Ago** \n The following screenshot shows the **scores, submission times, and submission counts** of these suspected cheating teams from two days ago: \n ![Figure 1](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F20801798%2F3ae33d8dcb1c18b2bd5bfad75a22b89b%2FGBCTCS0(XUO8MWLNX.png?generation=1751301610586960&alt=media)\n\n2. **Today** \n This screenshot shows the **scores, submission times, and submission counts** of the same teams today. Note how their submission times and scores are **almost identical**, further confirming the cheating behavior: \n\n![Figure2](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F20801798%2F3484c58d2bd9fdce8b0056a07928e168%2F1.png?generation=1751302942773160&alt=media)\n\nPlease thoroughly investigate these teams! @addisonhoward @ryanholbrook @sohier\n\n\nThese \"zombie users\": @boyuanyao @chenyaqi1 @haotianxue1214 @zihewang123456 @zhuangchengyu @chenwancong @gege2025 @qiaosenxu @muyvyangguangguo @amiaoghg @huahai999 @rongchenbao @shengqidai @noobanot @submitcsv @jackhou222 @stephanieyue1992 @pengjiankun @adwwgwq23412421 @yfr999 @yanfengli666 @thomasliu369 @kagglejason5 @huayuliu3 @senhaozaho @lyon9769 @logmax @kaixinwang1110 @sakarush @ryogofunahashi @nakaso @mohanzeng @frederick2313072 @extremenation ...", "3237507": "Thank you for raising this topic. I have also noticed the teams with the same score that started to appear a few days ago. I suspected that the solution might be available online, so I found this interesting webpage:![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F3348210%2Fb4fa91955fd9592dbf9d366485f679cf%2FScreenshot%20(348).png?generation=1751350453691144&alt=media)\nIt is not clear what they were selling exactly, but the price was 516$. The page is now gone, but I have the address and the screenshot left.", "3237267": "I was shocked to find that my team member's name was included in this post. We have never engaged in any form of cheating or account sharing. We participated in this competition fairly and put in a lot of effort to improve our solution.\n\nIt's unfortunate that some people are being publicly accused without any solid proof. Similar submission patterns can occur naturally when teams work hard and iterate frequently, especially towards the end of a competition. Jumping to conclusions based solely on submission time or score similarity is not a fair assessment.\n\nI respectfully request that you reconsider this public accusation and let the Kaggle compliance team handle the matter professionally and objectively. Publicly shaming individuals without verified evidence damages the community and discourages honest participants.\n\nThank you.", "3236896": "why am i on the list? me and mudesteven worked hard for our 25.0 : (", "3236844": "It is better to contact compliance@kagge.com than publicly shame people IMHO. Now that you have done it, don't remove it.\n\nYou could be right, but Kaggle compliance team is the one deciding on this.\n\nI am not part of Kaggle, this is just a friendly advice.", "3392890": "Agree with you", "3237296": "This competition's score is only kept on 1 decimal places, so it's relatively normal for the same LB scores.", "3237059": "Oh, I'm in the suspected guys group!\nAnyway, I believe most of the other participants around our teams on LB just took a similay approach without private sharing. \n(this is because our solution is not so novel and not so hard to come up with one)", "3236948": "This is serious stuff. I would report it more to Kaggle themselves then go public. I think it just looks better, especially if it's not confirmed.", "3236903": "Better to report to compliance@kaggle.com than call out publicly. Not part of Kaggle — just a friendly tip.", "3236857": "As I mentioned, they submitted their solutions and increased their scores almost simultaneously, and the fact that two teams engaged in cheating has validated my statement.\n\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F20801798%2Fd84bd0523010279a1894a88c0b7190cb%2F9INXO_((TR1HWV0NAH.png?generation=1751305418789363&alt=media)", "3239617": "I tried very very hard to beat 28.8 (200+ versions)and failed. and these accounts are taking all the fun out of the whole experience. Hope the kaggle team could do something.", "3239078": "i am agree with you but your reason are not valid to identify cheater's", "3237734": "@tianyihan7561 https://www.kaggle.com/competitions/jane-street-real-time-market-data-forecasting/discussion/586090\n\nThere is also this game, which is more popular than the earthquake wave game.", "3237113": "I agree and I have seen this pattern in multiple competitions now. Some teams are clearly cheating (you always find clusters of novice / contributor accounts that have created their account few weeks before the deadline). However top Kagglers don’t really care since cheaters never come too close to the gold zone.", "3392887": "", "3237097": "", "3237090": "" } }