I think the best way to start dealing with this scammers is withholding their coins even after they made correct payment until after a long time and pretending you didn't notice they made payment and filing an appeal against them. They do all these intentionally.

When I get paid, I don't only check if the funds reflected in my account, I watch the figures carefully. At a time I've been paid 182891 instead of 188291, had I not been very meticulous with inspection of funds, I would've released the coins meanwhile I was underpaid.

Again guys should be very watchful for the remarks section. Some of these guys are federal government agents and they'll leave a remark indicating that it was a crypto transaction and such account is at risk of getting banned. In such a case, you'll just raise an appeal, empty the funds from the account into another account and never release their funds. It's important you receive P2P funds in an account without much balance in case things go south.