Part of the challenge is how wide his text column is. It makes the lines hard to scan; your eye can't fall on a line just once or twice to scan it, but must keep falling, which makes the text feel more tedious. Easily fixed by narrowing the browser window, of course.
Often, it's the little things. Particularly with excellence. While I might be amenable to the tenets of this kind of stream-of-conciousness, this is the kind of guy I might enjoy lunch with but I'd never want to work on a team with him.
