Sure, that's great, but you failed to mention...
That sellers will no longer be able to leave a negative feedback for buyers. They can pay you, take your item, then file a PayPal chargeback (which, by the way, you'll be forced to use PayPal until you've earned 100 feedbacks). So they end up with both your item and your money, then they can leave a negative feedback. What can you do as a seller? Post a postive feedback for the buyer!
Epic fail, eBay. Epic.
Biting the hand that feeds IT
