But they can only do that if there is a paper trail which you can avoid p2p. It's one reason why I don't use Robosats and co. For all I know the accounts of the other person are already flagged for "whatever" and I'm not establishing paper trails with unknowns only to have the cops at my door.
Most non-KYC platforms are not non-KYC because people send money from one account to another with very little means to justify those transactions.