https://support.chess.com/customer/en/portal/articles/1444879-fair-play-on-chess-com-what-you-need-to-know
Discussions of cheating, potential cheating or cheat detection are not allowed on the general forums. If you would like to have that discussion, join the following group. However, accusations are still not allowed there.
https://www.chess.com/groups/home/cheating-forum
Player with nick [public accusations not allowed -- MOD] cheater be carefully!!!