There was also a case of somebody who was “competion” for a seller that had perfect FB, so he was buying multiple times from this seller, and leaving positive FB, but giving low DSR’s to kill his overall FB score. The seller could not understand why his FB was taking a nosedive, he seemed to have happy customers, and repeat business, until Ebay investigated and smelled a rat with the one repeat buyer. They linked up that account, found out it was his competitor, and in that case, all FB was removed, and that Competing Seller was permanently removed from Ebay. 😀