I have had a number of Nigirian buyers on stuff that I have sold over the Norwegian ebay alternative. The same buyer comes back on watches, cameras, bikes you name it. They always want the transactions done with paypal. They are obviously not interested in buying (as in paying) anything, so they must have found loopholes.
They typically hijack paypal accounts, and a lot of ebay users have the same password on both, so they use a stolen account, and have it shipped to a drop site, where it is forwarded to the thief. When the account owner notices his money missing, they just move to another stolen account. If the seller followed the complex rules and ships to the confirmed address with signature confirmation, etc, he will eventually get his money back.
Usually, the drop shipper is someone who was duped and is paying for the forwarding and believes he will get repaid plus a bonus. He'll get nothing but a visit from the Police, and lose a lot of money..