eBay at one time was dealing with a lot of seller fraud with sellers that didn't ship, shipped you a rock instead of a laptop, etc. over the years they started adding more and more buyer protection to keep shoppers from being scared away. Unfortunately they tipped the scales so greatly that now, as a seller, you can very easily be scammed. The scammers have simply moved to the other side now and commit their scams as buyers.

It must work out better for eBay that way. But it sucks to sell anything of high value.