This one uses a hijacked buyer account to target sellers -- the scammer hijacks an account and uses it to BIN a high value item. The scammer then pays for the item through paypal but with a stolen credit card, and directs the seller to ship to an unconfirmed address. when the card owner discovers the fraudulent charges, the credit card company initiates a charge-back, and since the seller has shipped to an unconfirmed address the charge-back will be successful. so the seller is out the merchandise AND the payment. to avoid this, it helps to put in conspicuous type that you will not ship to an unconfirmed address.