Richard Hoagland and Tom Van Flandern had/have major kinds of astronophysics credentials; most of the people calling them kooks, including YOU, don’t.
Hoaxland *was* a journalist, and he has no scientific credentials, AT ALL. He had so little credibility, even journalists (other than Linda Howe) regarded him as a laughingstock. His “Angstrom Medal” is a one-off coin-like thing presented over a private one-table dinner by a descendant of the scientist by that name, and is basically a little less important than a bowling trophy.
TVF had credentials and worked in the field, and his book on the EPH is definitely worth reading (I have both editions, but have only read the first one). TVF also had a nutty attachment to the ridiculous fiction that there’s a Face on Mars; as a consequence, he made himself look like an asshat, particularly after the higher-res images showed the “face” to be an unremarkable, asymmetric, natural formation.