Few days ago I was watching a game review on lichess and found out one of the player's account was banned. Any idea why lichess does that?
closed as off-topic by Brian Towers♦, Phonon, Akavall, Herb Wolfe, GloriaVictis Jan 30 at 7:21
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question does not appear to be about chess within the scope defined in the help center." – Brian Towers, Phonon, Herb Wolfe
First of all, lichess rarely bans players. What they usually do is flag their profile (usually for using chess computer assistance), remove their rating, and prevent them from p laying in tournaments and/or rating games. This is not a full ban.
To answer your question:
Lichess flags players for a variety of reasons, but (as mentioned above) they usually flag players for using chess computer assistance. They may also be flagged for sandbagging - artificially increasing or decreasing their rating.
If you want to know why are particular player was flagged, check their profile. There should be a large red banner informing you what has happened.
If you are wondering how the process of reporting/flagging players works, that would be a separate question.
The two main reasons:
Lichess detected that the player was very likely cheating.
The player used profanity or broke some rule of conduct.