I would say in regard to the Anunnaki you are correct. It is thinking derived from COS. There is no evidence whatsoever to suggest these reptilian aliens exist. Even low- level members of the UFO community would ridicule such claims. As for the Greys from Zeta Reticuli , that is a different story, they probably do exist. I researched claims of extra-terrestrial intelligence for many years. Scientology belief is generally speaking, ridiculous.