No idea who this guy is, I'm just reading his Wikipedia page. Looks like he created some file system, good! But it also looks like he got a mail-order bride (suspicious...), was an abusive husband (not good), was not able to get over his divorce (uh-oh), harassed and ultimately murdered his ex-wife (definitely not good!), and ultimately landed in prison.

I think Hans Reiser is some sort of idiot savant or well trained monkey. Probably very good at computer science and building file systems, but his general intelligence seems overall very low, which is proven by his performance at the game of life. I wouldn't personally be afraid of Hans Reiser and I'm sure he could be mentally broken very easily.