Chess.com takes cheating very seriously:
https://www.chess.com/article/view/chess-com-fair-play-and-cheat-detection
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.
https://www.chess.com/club/cheating-forum
Every kind of cheating are employed by many players here. i believe that chess.com knows about these dirty tricks. but still the do not make any effort to solve those bugs. they will pin your pieces in order for you not to make your moves in the last seconds. monkey clocks are still here!