You miss understand.
They are stopping sellers from leaving negative feedback for buyers. I think it is wrong to do it...
I have had buyers who where a right pain, one in particular did not update his address and I subsequently sent it to the wrong address, it said "verified" on both Paypal and eBay. I then reposted it to his right address at my expense.
Another who I sold a mobile to accused me of selling her a stolen phone. She said she'd posted it back and demanded an immediate refund. The phone was legit and she never posted it. She hoped I'd be daft enough to refund her immediately.
These two sales have put me off selling on ebay and that the feedback system is going to be soo unfair towards sellers I'm definately not going to be selling again.