Do you really think the quote you posted has the slightest thing to do with race? I realize that in it he repeatedly uses a very bad word, but, bad as it may be, it is merely a word; I should like to hope some allowance might be made for the very plain fact that the man's mind isn't right, to say nothing of the minor point that, allowing for differences in phrasing and style, even a luminary like Paul Graham might well make the very same argument about unnecessary complexity.
Then again, when even a luminary like Paul Graham has to be careful about what he can and can't say [1], I suppose it's not too surprising that people should care more about the style of Mr. Davis's remarks than about their substance.
If someone you didn't know were posting these things as, say, YouTube comments, it would still be immediately apparent that their "mind isn't right", as you put it, but of course it would be perfectly acceptable to write them off. The allowance you're making is really because he's inside the group that HN readers have an interest in. If he wasn't a programmer, he would be just another religious nut to you.
Then again, when even a luminary like Paul Graham has to be careful about what he can and can't say [1], I suppose it's not too surprising that people should care more about the style of Mr. Davis's remarks than about their substance.
[1] http://www.paulgraham.com/say.html