I'm actually on this man's side.
The idea-stealing he talks about is not unheard of, and multiple people or groups coming up with similar ideas at the same time by looking at market trends is actually quite common.
If you also look at the fact that he has evidence for pretty much all his claims,
AND
He has gotten the domain and has evidence for the ideas and ownership of "Open AI" before Altman's "OpenAI" was formed
AND
He says a lot of his ideas never came to fruition because he couldn't get funding but the one thing he didn't need crazy funding for, investing in Bitcoin when it was $10 per coin, is something he ends up doing and leaves him well-off.
All that to me is enough evidence that this man is one hell of an unlucky individual.
And as such, I believe him.