Not to mention ebay refuses to anything about scammers. The odds are pretty good if you sell a laptop the winning bidder will have paid far over fair market value and is from Nigeria. It is basically scammers trying to outbid each other.
Then they add "security features" like taking away the ability to see who is bidding. So there is really no way to track shill bidder anymore.
Ebay's stock is trading like a growth stock, with a ridiculous PE. Ebay is basically dead money right now. The problem is they have no competition, and other than Google I am not sure who could launch auctions that could challenge them.