Those of us who've been on the net long enough, and have at least dabbled in AI/ML circles, know of him.
He claims to have invented a program that is a mind, originally written in Forth, translated by others to many other languages, etc. He has published the code of this program in a form of "open source", so you can easily find it if you dig enough.
He's widely considered to be a crank. That said, the line between genius and madness can be mighty thin, and what side he lands on is anyone's guess, but most put him well over the line into madness, for whatever its worth.
My own opinion?
Well - looking at his work from purely the modern understanding and research into ML/AI - that is, deep learning and such - his work would be considered pointless, probably worse than Eliza as to its contributions to the field.
But as someone who has read a lot of other works (for for and against) the idea of AGI, artificial consciousness, theory of mind, etc - his work at a certain level has echos with some of that work. Still probably a dead end, but at the same time, there's some interesting concepts within his code and theories (he's self-published a book on it, too - you can find it on Amazon - he also has it for free on his github and it can be found elsewhere).
I guess I still put him in crank territory, but not in the abusive crank arena, more in the "doing his own thing, but being a bit evangelical about it" - relatively harmless.
His work is not as amazing as TempleOS, imho, but there's a similar mind behind it (though comparing it with that operating system is maybe an unfair, possibly orthogonal, comparison).
I won't say or reveal more (but I've written enough for you to figure it out) - he tends to monitor tons of forums and if he thinks he's being "summoned", he'll spam the forum with his writings and theories. It got him "perma-banned" from more than one newsgroup back in the day...