The thing is, I am one of the few nice, honest buyers on eBay. I pay immediately, don't do chargebacks, communicate with the seller promptly, etc. etc. etc. I left useful FB (i.e. "authentic ___, fast ship, good communication", not just "thanks") the second I received my item and verified for myself that the item was authentic. A fair bit of time has passed, and the seller still hasn't left FB for me! I know things happen, and maybe in another month or whatever the seller will leave positive FB, but seriously--if sellers want buyers to be prompt in providing FB (especially with the crazy new no-neg rule), then they have to be prompt in leaving FB as well!!