A particularly difficult con to detect and account for. On eBay fraudsters buy large quantities of eg $1 seed packs, to build up artificial account ratings. Th

A particularly difficult con to detect and account for. On eBay fraudsters buy large quantities of eg $1 seed packs, to build up artificial account ratings. Then they try to steal expensive things (didn't arrive, wasn't in the box, arrived broken, etc), and eBay shields the accounts heavily because they favor buyers to an extreme. All the thief has to do is be disciplined about it, buy $40-$50 of cheap items for positive feedback, then go after a $300-$500 item. Sellers can't even leave negative feedback on eBay, which further cuts off a mechanism for at least warning other sellers of a running con (sellers sometimes leave the negative language in the neutral/positive feeback segment instead, which rather points out the absurdity of eBay's broken system).