I have stupid 5mi posting rule and about 15 pms
You should be able to cut that down a fair bit.
Ignore anyone offering paypal or asking you to send first as they are "trusted"
You will probably be left with 1 or 2 genuine buyers
As far as I understand he's actually looking for people buying with Paypal isn't he?
But sure, very few (if any) members can deserve to not go through escrow for first trades ^^