The Movements of Gnostics site presents some very interesting reading.Some tuly amazing behaviour by the "master" Pritchard. It does seem however,that there are many Gnostic apologists/defenders who contribute to the site. The English speaking groups tend to be very isolated from other gnostic groups and general gnostic info and maybe for that reason develop a belief that "only my group is problematic" and look to continue their Samaelian gnostic path elsewhere. I have contributed many times to the site with the point of view that the problem is the entire doctrine, which leads to confusion and aggression, and that this is reflected in the teachers of the various groups.
Very interesting to read about Pritchard's (Belzebuub) "My Story". He keeps changing it, as new information about his past comes out.