When a buyer or seller wants to post feedback, the following notice appears on the computer screen:
Important changes to feedback
Buyers, you can no longer receive negative or neutral Feedback from sellers.
You should leave honest and accurate Feedback without the fear of receiving negative or neutral ratings.
It’s an invitation for buyers to give bad feedback and at the very least, treat sellers with no regard for courtesy or fair dealing.
But then, eBay has always catered to the buyer. eBay has never had a problem getting a steady stream of sellers. It is hoards of buyers that eBay must have to remain successful.
Link