As someone who first knew Terry Davis from Slashdot where his clearly mentally ill posts seemed to get downvoted a lot of the time, it is remarkable to see that the products of his madness have become regarded as real art with staying power. He is like the Adolf Wölfli of the hacker crowd.
Honestly, if it weren't the product of religious delusions common with schizophrenia, I'd say TempleOS and HolyC would be more than enough of a resume to get hired into many programming jobs.