Well how about this -- just ignore the "cheaters" (there's no proof) and take the loses. But know this:
The cheaters gain nothing with online chess; and when their rating gets too high, they just can't play w/o assistance anymore. They lose everything (wasting time and having no fun) while you gain something (playing a more difficult game, learning from mistakes). Granted that humans are much more fun to play against, comptuers aren't too bad once in a while.
I have lots of problems with my hands so I have to play slow chess usually 15/30. As you speed chess players might imagine, it's a pit of cheaters. I think cheating is incredibly obvious and the tell tale is that each move no matter how complicated takes around 12 seconds which I guess is the turn around for entering the move. There are a variety of ways to avoid it - members cheat much less, new players cheat much more, people with standard ratings much higher than speed ratings are always cheaters (my hands barely work to the tune of $20K in medical care every year but my speed rating is higher than my slow rating which means chess.com community is cheating or has seriously bad hands). I especially enjoy a hard fought game in which I get up by about a pawn plus and then 3 minutes go by with no move followed by the 12 second/move amazing comeback. Gee what happened?b
But I have a solution. Just allow players like me to put a button on their profile that when pushed takes away 8-10 rating points from me and gives it to them. There is no game and that player is blocked on my profile. Since that's what cheating is with a bunch of wasted time in the middle, I think most players would get the message. Cheating isn't clever and everyone knows you are doing it. So we put a button there that practically screams "Pathetic loser" and I bet cheating drops off a ton.
In the end, it is just an annoyance and I have nothing but time until I have no time now. But what a cool thing it would be to pit a "Pathetic Loser" button up there that pathetic losers could press until they decided chess.com wasn't helping their self-esteem problems...