Artists who create commissions know one caveat with accepting PayPal: their Seller Protection doesn't cover services, so they can and will be SOL if the buyer decides to dispute the transaction. While Buyer Protection doesn't cover services either, PayPal is notorious for ruling in the favor of the buyer, so the seller needs to look into other ways of protecting themselves.
Which leads to our discussion here, of how we can leverage Seller Protection to ensure scamming buyers can't run off with the money after the service is completed -- by converting your commission service into a tangible product.
Seller Protection covers tangible products