He probably just didn't take very kindly to the Linux scheduler being called "bad" in the blog post, when tons of people have spent an immense amount of time on

He probably just didn't take very kindly to the Linux scheduler being called "bad" in the blog post, when tons of people have spent an immense amount of time on it, and there are in fact good reasons for it behaving the way it does. If I were in the same seat, I'd be pretty stingy with the politeness as well.