That's a shame. He did something awful, but that's nothing at all to do with the idea in the quotation. Ideas shouldn't be cursed because the wrong person said them; they should stand or fall on their own merits.
The world is full of examples of art and science from troubled individuals; much of our foundational understanding of certain areas of science is derived from the learned experiences of inhumane research conducted by nazis or WW2 japan. Yet one guy murders his wife and suddenly we are all rejecting a perfectly cromulent filesystem.
In any case, I was a technology journo at the time this happened, and I covered this story, but I don't recall encountering a lot of technical discussion... it seemed to be mostly "ew this guy murdered his wife". Which is entirely deserved. (If a little unfair to the creative work)
I wasn't much of a programmer yet so maybe I wasn't looking at the right discussions.
I think it's the crazyiness of this era. We expect people to be either "100% good" or "100% bad".
Of course we, as a society and as individuals, are (unsurprisingly) deeply surprised when we find out somebody we like isn't "100% good" and can't accept that somebody we don't like isn't "100% bad".
[edit: this is not 100% related to Hans Reiser, of course, more on a general tangent].
Friends, Romans, countrymen, lend me your ears.
I come to bury Caesar, not to praise him.
The evil that men do lives after them;
The good is oft interrèd with their bones.