Well, considering we arent supposed to point to incidents of cheating, then no. Needless to say, if you look up on the chess.com player list there are usually one or two players who have only played about 15 games and are about the top of the leaderboard.
They aren't there a few days later.
This is a serious question. The issue of cheating consumes a large part of the discussion on chess.com. I have had no experiences in which I thought someone was cheating. I've joined in numerous discussions where someone claimed he/she had been cheated that ended the same way: the "victim" withdrew his/her claim after numerous requests to post the game under suspicion.
My experience has thus been that false accusations of cheating are a bigger problem than cheating.
Can anyone point to incidents of cheating on this site?