How is it possible that he scams through Paypal?
Is he using his own Paypal account?
I mean when you charge back, you just get your money back after a certain amount of time, right?
Edit: He asks to send it as a gift so you can't charge back, missed that.
Man in the middle attack.
He finds some one with payapl who want Bitcoin.
Then goes on IRC and finds another person with bitcoin who takes paypal.
He negotiates the deal then get a btc address from the buyer.
Then He gets a paypal address from the seller.
Then he sends the buyer the seller's paypal address.
Then he sends the seller HIS bitcoin address.
Seller sends bitcoin to Bitscotty.
Buyer sends Paypal to seller.
When buyer does not receive btc he charges back.
Buyer gets his money back.
Seller is out of bitcoin.
And bitscotty drifts off into the night to come back under a different nick.
Always communicate via the paypal address to confirm a paypal trade.
You'll be surprised of the response you'll get - "Who are you!?"
Rarely has the attacker compromised both the email account and the paypal account.