Partially correct.. The scammer will offer to buy the names, a deal will be made, and the payment then sent. Once the payment is sent the seller transfers the names to the buyer. Then, often hours later or in the middle of the night, the 'buyer' will do a fraudulent chargeback on their payment claiming it was sent without their knowledge. Because PayPal doesn't investigate claims deeply they refund money
instantly, and THEN start their investigation. Their investigations often leave the seller screwed regardless of what happens and a court case is then the only option. Court costs a LOT, so it's likely the seller will not pursue it. Scammers know this.