Yes, the site is down, as I had expected it would be sooner or later.  The 'legit' company registration was probably a clever cover or decoy tactic.

I am concerned that this could form the template for a series of scams in the near future. 

A 'legit' company suddenly appears, starts to offers freebies and generates interest on forums, has a fairly well designed and legit-looking website. 
Accepts payment only by bitcoin, then, one day, 'poofff'... gone, just like that.  Too late, by the time you realise everything was just a cover for a clever scam!

I think, at least partly, it is the unique nature of bitcoin transactions makes such a scam possible. 

Hereafter, I would be extremely careful dealing with a site that "accepts payment only by bitcoin"!