Terry, despite his achievements, was erratic and schizophrenic, which led to him posting a lot of racist rants. Qualities which I assume made him attractive to 4chan.
I can't really tell, but it's my considered opinion that the intersection of 4chan and the alt-right is so recursively lulzing that nobody involved really knows who's serious. Or even what "serious" might actually mean. But maybe I'm just old, and set in my ways.