Hm, I wonder if there's something similar to what's happened with Terry A. Davis, author of what's been renamed to TempleOS [1]. He became schizophrenic, and has become less and less coherent over time. He used to have an account here, but either I can't remember it or it's been deleted: most of his posts were of the vile variety.

There was an extensive profile of him on Motherboard [2]

[1] https://en.wikipedia.org/wiki/TempleOS

[2] http://motherboard.vice.com/read/gods-lonely-programmer