What do you think about players who cheat in a way that cannot be detected?


The perception of cheating levels is orders of magnitude more than the actual amount. At higher rating bands, the percentage is higher but still not as high as many members think.
https://support.chess.com/article/648-what-do-i-need-to-know-about-fair-play-on-chess-com
https://www.chess.com/article/view/online-chess-cheating
https://www.chess.com/article/view/chesscom-update-october-2024#FairPlay
The site closed more than 63,000 accounts in September for fair play violations and has a full team of staff working on reports along with some automated systems for detection.
https://www.chess.com/article/view/fair-play
That said, discussions of cheating, potential cheating, or cheat detection are not allowed in the general forums. If you want to discuss join the following club once you have been a member for at least 30 days.
https://www.chess.com/club/cheating-forum