Discussion of cheating in not encouraged in the main forum. A specific group cheating-forum has been created for such speculations.
Erik has posted a topic cheating-at-chess-on-chesscom---questions-and-answers outlining chess.com's policy and thinking on this subject.
I think some people here
are using computer softwares . when
someone has rating 1400 or 1500 and
play as 2200 . Also if looses with
1399 how can win with 1730 4 games
without loosing and without mistakes.
That is shame for that players , they
are not chess players.