That bothered me as well, especially his flippant attitude about it ("Comments are never going to happen. Stop trying to make comments happen"). I get the joke, it's from that Lindsay Lohan movie. But the cognitive dissonance that it creates is annoying.
He's basically saying "I want Twitter to die because they don't allow proper conversations to take place. Oh and by the way, don't bother commenting on my post because I don't believe in blog post conversations."