The flurry of posts from newly created nicks is sadly a pretty typical behaviour for recruiting agencies or similar stuff (DLR test prep schools too) in germany. We had and sometime still have the same problem on
www.Pilots.de when it comes to topics like that, same for other dodgy aviation companies.
However paying upfront for a typerating without a written contract with a guaranteed job is somewhat stupid, hope not many step in to that particular trap.