I must say I used to believe him. Now, I still consider him with an open mind. There almost always is a core of truth even in the most despicable of lies, and in information that is wrong. Either way, what matters to me, is that he seem to be a great person, and I would love to meet him face to face to discuss this kind of stuff.
And he's not the only one who speaks about reptilians, either, as we've heard from the Dulce stories.