After more than 1200 eBay auctions, I had to leave negative feedback for two sellers recently. in each case, there was nothing but radio silence after the auction closed and I'd paid with PayPal. It was as if the seller dropped off the face of the earth. I waited until the final days to file a claim, did so, got my money back, and dutifully posted negative feedback as a warning to others: "Seller never surfaced. Had to file claim for refund." Neither seller ever contacted me to challenge the feedback. One of them is listed among the eBay 1:6 shops links in the left column of this page.
It's worth inserting here that that particular seller is still hosting auctions -- 367 of them -- and will still accept bids from me. I tried by "nearly" making a BIN purchase.
The odd thing is that three other 1:6 vendors on eBay have blocked me from bidding, even though I have 100% feedback and have made many purchases from them -- all ending in positive feedback given and received. Two of those three are also listed in the links at left.
As I attempt to make more purchases from my other regular sellers, I guess I'll see how wide the blacklist is. But it's pretty obvious that they've devised a way of filtering out any bidder who has left negative feedback for anyone.
I spoke with an eBay rep tonight who was startled when he looked at my history and saw the number of past transactions and the absence of problems between these sellers and me. But there's no policy (yet) limiting the right of sellers to restrict their bidders. He assured me he'd be sending this report up the food chain, and said, because he had to, "I hope this won't discourage you from leaving honest feedback." I laughed and said, "I'll never leave negative feedback again, no matter what happens. I need to buy my crap from these guys; I'm a customizer."
I won't name the vendors, because I don't really know whether their being listed is a courtesy OSW extends, or if they pay some consideration toward the board's maintenance. If a mod says I can spill, I will. But just consider this new trend before you post negative feedback for any eBay seller, because this is probably an automated process. These guys have hundreds of auctions and thousands of customers. I haven't been able to get any of them to answer my "what gives?" emails, even when sent, in one case, to their off-eBay direct site as well as through eBay and using the email address I've kept from past purchases. And these are the established, friendly sellers we regularly go to for our stuff.