I watched his QAnon documentary a couple days prior to this movie's release and I think the guys repeated the same thing he did before. 

In his QAnon docu (which is really good), the 4chan admin basically trolls him the entire docu and then exposes himself as QAnon in a similar (but probably truthful?) troll comment as you did in the Bitcoin documentary. I think he may have thought "well, I found the first guy and he admitted to his identity through trolling, now the same thing is happening with Peter". The main difference being that the 4chan guys are literal knuckleheads.

I can recommend that documentary.