The site can't run every game but if you suspect someone of using disallowed resources you should report them.
https://support.chess.com/en/articles/8562517-how-do-i-report-someone
If you have reported and the account is sill open after a few days then either
- There's insufficient evidence of unfair play
- There's no evidence of unfair play
That said , discussions of cheating, potential cheating, or cheat detection are not allowed in the general forums.
Yesterday I played rapid against a guy on [removed ] ranking. He crushed me, and you know that feeling when you play when you just notice something is wrong when player plays all incredible moves in exactly 3 seconds. Well that happened yesterday against a guy that has 4k+ games and platinum membership and account a year or so old. I analyzed the game and of course he had fully accurate game. I checked his other games post playing me and pre-playing me, and of course all were fully accurate stockfish games. He couldn't be more obvious by playing all moves in 3-5 seconds, no moves less than 3 even if it's the easiest pre-move.
And here is screenshot of his 6games
This guy has over 4k+ games, so how does system not automatically ban him by doing this so obviously. Is it because this person is a platinum member they can just cheat without consequences?
Looking at his account he seems to cheat every like 10 games when he loses his rank. Cheats obviously for 6 games to regain his ''perceived'' rating, then I guess plays without stockfish for 6-7 games, loses most games and then gets back to cheat again. And on repeat. Bunch of games where he wins is just 3 second move 100% accurate games, once he loses he plays quite below this ranking.
Edit: Screenshot with his and his opponents covered names not working: Gonna try a link: [public accusations are not allowed -- MS]