There is most certainly a way to identify the owner of the account with the hosting service.  That would require the appropriate LEA in the hosting country to go to the hosting service and get the owner information from the service.  If that hosting service also hosts in the USA, then the FBI would have the authority to subpoena the records from the service.

Where there is a money trail, there is a paper trail.  There is no way this thief can hide *IF AND ONLY IF* a law enforcement agency decides they want to track that person down.  My suggestion is for everyone who has lost BTC to contact their law enforcement representatives and explain the situation to them.  Once any agency gets enough complaints, they will probably start moving.

That does not mean anyone should get their hopes up, but it does mean that the person's responsible will have something to think about while various LEAs start trying to track them down.

Just my two, but the web is IN NO WAY anonymous.  Anyone who says it is, needs to stick with bitcoin investing and stop talking out their arse.  Once you pay someone to host a site, you have left a money trail.

There is already a lot of information in this thread regarding the ownership of the site (74 through 76 I believe).

Anyway