I agree they need to do something about all the fake watch listings as I had to get an Ebay refund for a fake AP scam purchase a few years ago.
I actually think one thing they should do is do a better job of vetting expensive listings when items are reported as fake by the online viewer community.
They should also require a minimum number of clear photos from all angles of the actual watch being sold.
But this concierge/escrow/authenticity guaranteed service certainly smells like it may evolve into extra fees at some point.