Paypal is extremely risky. A friend and I used to sell high cost gaming items and got screwed multiple times on Paypal. The hardest part is when you sell or buy intangible items. It's extremely difficult to prove you ever "gave" someone the services or items they purchased in the hobby, just as it would be nearly impossible for someone to prove they "received" any items or services, so it leaves you open to an open dispute and loss of any money and possible closure of a Paypal account. Short of video or photographic proof it's your word vs. theirs. And Paypal tends to side with the originator of the dispute in cases they can't solve.
Plus the trail of evidence you'd be leaving would seem like a REALLY bad idea.