I've also changed my tune on leaving feedback. Yeah, as a buyer, delaying feedback still annoys me some, but I sooo understand it. I've only sold two clothing items on eBay. The last time I was an active seller was 2009. The first, a pair of shoes, still has no feedback, even though I sent a polite reminder.
The second, this 38/32 suit, was returned because it was too small for the guy's 40/36 frame. Well... duh!
A buyer not only has to remit payment, but they also have to be a conscious and considerate participant in the transaction. They both paid me fast enough, but the guy from Germany wanted me to lie on the customs form, claiming the shoes were only $18. I said no, which is probably why he's withholding feedback. These two have ruined things for my future buyers, as this is a pretty horrible track record for experimenting with me leaving feedback first.
Heck, I seem to have a hard time getting feedback on SF B&S, too.