Lichess is very good at knowing if you are cheating, so I have no problem with that. If you cheat, it will be recognized after a few minutes and the results will be taken away from the cheater, so there is no reason to stop playing here. And if it was a false claim, then lichess is open to discuss it and make another decision.
I think lots of our players are not playing to much on lichess so that their rating is not right.