He's been a popular tech writer for a couple of decades. He's written some very influential pieces in the past - here's a copy of one of his most famous (I don't think the original is available any more): https://gist.github.com/chitchcock/1281611
> (I don't think the original is available any more)
That's because this one was not a blog post, it was a Google+ post that he intended to share internally with Google only. He had other great rants on his actual blog though, about (vague memory here) Emacs, game development, language design, etc.
He's an engineers who's been involved (or close to) some of the most influential technologies/products in use in the last 10 years, and his blog posts are quite celebrated and respected.
Think of him as an essayist. Like Paul Graham (pg on this site)