Is there a time limit after paying for doing a chargeback on Paypal? If yes, then you could explain to the buyer that in order to avoid scams you need to wait for the payment to clear the time limit before sending them the stuff
Almost like an Options Market.
if your going to accept paypal for btc
might as well set up a fake/temp paypal and ebay, take payment, cash it out some how, and dump the account when the first charge back hits. At-least you can over get more than the current exchange rate, not sure what percent the laundering and chasing out will take up though.
The scammers are probably looking for other scammers to take part in this sort of game, so neither party is getting scammed, and ebay/paypal take the losses.
E-bay has shit deals anyway for the most part, its littered with stuff from DHgate, or some other whole saler. E-bay takes 9% then paypal gets 3%, how can you be competitive? each could do just fine on 1%. I was thinking of setting up some kind of site where used goods or maybe stuff from the scratch and dent / open box good deals was allowed, what e-bay seemed like origionaly, a good place for a deal. Bidding Pond is doing that, and seems to be the most popular BTC auction site, wish it was more popular.