A direct report to eBay does little, because only the trademark holder can have auctions stopped there; it is more effective to alert Montblanc itself to the counterfeits. Directly addressing the sellers often has no effect, since many are either uncooperative or do not themselves recognize that the items are counterfeits. The collector community discusses a more consistent banning of relevant sellers by eBay, but this is not yet enforceable. Collectors therefore exchange typical fake characteristics among themselves to protect buyers.