I am sure there is some illegitimate activity going on somewhere on the forums, but unfortunately lots of the time this can not be proven. In most cases this is demonstrated by missing money or digital goods being revoked. In a case where everyone is satisfied and no actual criminal activity is necessarily taking place, simply playing guessing games that something might go wrong or "could be" criminal and then marking people as criminal scammers is not appropriate, especially when done on such a large scale with little discussion. This is not the behavior of some one that should be in a position of authority like the default trust list.