PayPal is one of the riskiest payment methods and a favorite of scammers. Ask for ID with selfies and signatures and check for photoshop. http://fotoforensics.com/ It is best to call PayPal and tell them you are selling bitcoin as they allow it.
Well played with the unauthorized use reversal. "hat tip" - I at least waited until the whole thing played out on paypal, and asked if you wanted to do anything to fix it. (For others reading, this was the straight paypal, not giftrocket, so maybe you'll get paid) - Considering I only sell btc and don't buy here, maybe sensible people will catch on to the copy+paste of feedback, seconds.