I think BDA is a LARP. I recall that he said when the Rona first arrived that it had been spread when, following the crash of a vehicle carrying containers of it, people had looted the vehicle.
Yup, that's exactly what he said and there is no evidence to the contrary. And there's no reason to call LARP on the one thing you believe he said was wrong. There are many many other things that have been proven true. The things he was wrong about, which he's readily admitted, we things that had to do with the DOJ. He admitted that his sources for the DOJ are a bit shoddy.
The thing he was most right about in my opinion, is the fact that we have uncovered craft "not of this world". That alone makes me want to continue to read what he has to say.