Some do, his theories are pushed to at least one Congress critter, Cong. Markey. It seems that some of his theories showed up in the testimony of a government witness in the BP trial. The BP lawyer sort of dismantled him.
There is at least one active site on FB that features them, Real Coastal Warrior, and one of the plaintiff attorneys, Stuart Smith, relies on them quite a bit for his posts on several sites.
It is somewhat scary how many folks believe his nonsense.
Something I have seen a lot of, on the Gulf Coast sites, is that folks fall for anyone that claims to be an 'authority' that is NOT connected to the government or business. It is seems to be even better, if they are not connected to an university, either.
One of the activists there was 'warned' by a 'doctor' about how dangerous the gulf was. She moved her family out and it seems, she never checked to find out if he was a doctor. He was arrested, after a tornado, I think, in the midwest for posing as a doctor and first responder