It's not a new policy. This happens when you're a new eBay seller and/or you've sold a high-ticket item (about $100+). There was a loophole that was discussed here awhile back, but I'm not sure if it still works. However, the safest way around it is to send the item to the winning bidder by U.S. Priority Mail with Delivery Confirmation. That way, the package will arrive quickly, and you have a tracking number as proof of delivery. There's a section in PayPal where you can enter the tracking number, and once PayPal can confirm that the package has been delivered, they'll release the funds, even if the buyer hasn't left any feedback. This happened to me a couple of times when I sold items over $100, and when I knew that the packages were delivered, I entered the tracking numbers into PayPal and called them to make sure that they released my money immediately. (If it's before the 21 days are up, I don't think the release happens automatically, so you may need to call them and point them to your Delivery Confirmation numbers.)