1- use paypal e-checks. The buyer has more control
2- if you get scammed in a trade, you have their address, so send them a bill. If they don't pay it, in some state it can be on their record for the rest of their lives. (also if they have parents address it to them)
DONT HOLD ME ACCOUNTABLE IF ANYTHING GOES WRONG IT NOT MY FAULT.
(cover your bases lol)