I couldn't agree more with his claim that comments are an unnecessary feature for a modern blog. Back in Web 2.0 times comments were an absolute must-have. I think the web in 2013 has largely moved on from the notion that "everything must have a comment form below it".

People generally don't put as much work into their comments as you did into your blog post, so the comment section is a tangible dive in written quality. And they tend to be quite "fire and forget", because although somebody might disagree with something in the five seconds after reading a post, they are unlikely to remember that disagreement two days later and return to see if anyone responded.

Personally, if somebody felt strongly enough about something I wrote to want to say something to me something about it, I'd prefer an email anyway.