1) Hoagland is NOT a scientist. He is a science FICTION writer, and not even a good one.
2) His “theories” are mostly full of conspiracy theories about NASA, Egyptian gods, the Masons, Illuminati and something he calls “hyperdimensional physics.
3) He makes people PAY to post on his forums. We used to host him at one of our sites until he started censoring people, among other things. He didn’t want people who were tearing his theories apart to be heard (including the administrators like me).
4) He attacks people who disagree with him, or he tries to discredit them by making them sound bad.
Ha! He was on C2CAM a couple of weeks ago saying that the "excess" heat output from Jupiter and Saturn was from hyperdimensional holes, in particular, from that newly observed hexagonal storm. (and, of course, he predicted everything that will be discovered years ago. Just ask his good friend Arthur C. Clarke...)
The other really annoying thing that sticks in my mind was that somebody was allegedly going to make "Monuments of Mars" into a movie, and RCH & Co. were going to have a say in the project, so anybody interested working on/in it has to read the book, and submit their resume to some fax number, iirc.