Is he/she really cheating?


If a player starts bad, get worse and then play fantastic, its obvious that it was no cheating in the start, and probably no cheating at all.
At my level, ca 1400 Fide, the strength is extremely variable. I can play fantastic games, with caps-score around 98, and I can play terrible, scoring below 50. So I can look like a cheater when I am good. Playing more or less perfect isn't cheating, it s the way we play when we do our best.
I faced one player in a tournament here who had quickly climbed to 2,000 and I was suspicious of their moves being "too good". Months later, their account is marked closed for cheating. For the game in question, they had a centipawn loss of FIVE, and their only inaccuracy/mistake was playing a #2 engine choice (something a cheater might do intentionally to mask their cheating).
So it's not always "they're not cheating, you're just bad". Sometimes your intuition is right. Analyze afterwards and keep reporting to support@chess.com.

It appears that he/she was using language to try to intimidate you. Fortunately for me, I don't get intimidated by anyone here, no matter how hard they try.
I always laugh at the use of the word "intimidate". Like dude.... I'm gonna say nasty things about you and your momma..... gosh that is such a scary prospect..... ahahahahahahahahah

This topic is being locked - Taurusmale67
To discuss the matter of cheating further, or to learn more about cheat detection, please join the Cheating Forum: https://www.chess.com/club/cheating-forum
Chess.com takes cheating very seriously: see 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 and https://www.chess.com/blog/DanielRensch/cheating-on-chesscom.
Cheaters are banned when they are detected. There are various tools that are used to keep them from returning without permission; these tools are familiar to anyone who has run an online forum.
However, discussions of cheating in the main forum is not permitted, as it tends to become very heated and result in lots of public accusations, many of which are completely unfounded; you might be surprised how many cheating reports we get about low-rated players after a game that was a complete blunderfest. If all these reports were aired in public, it would just cause an ugly flame war. Therefore, I am locking this post.
To report a suspected cheater to the Support team, please select Report Abuse under the Help menu, or use this link: https://support.chess.com/customer/portal/emails/new. All reports are investigated, even if there is no immediate visible action.
Thanks,
Taurusmale67 - moderator