There are a few good reasons for this. First, hardly anyone reads this blog, so it doesn't matter much here. I'll re-evaluate the comment policy if it gets popular. Second, I don't need comments from rabid Mac Zealots clogging up my bandwidth. Since I don't pay for hosting this blog (thank you, Google), again, it doesn't matter.
But the best justification for not allowing comments comes from, of all places, long-winded T-Shirt salesman John Gruber, who said in a recent interview:
Translation: I'm brilliant, you're not, I don't need you.
"I wanted to write a site for someone it’s meant for. That reader I write for is a second version of me. I’m writing for him. He’s interested in the exact same things I’m interested in; he reads the exact same websites I read. I want him to like this website so much that he reads it from the top to the bottom, and he reads everything. Every single word. The copyright statement, what software I use, he’s read it all.
"If I turn comments on, that goes away. It’s not that I don’t like sites with comments on, but when you read a site with comments it automatically puts you, the reader, in a defensive mode where you’re saying, “what’s good in this comment thread? What can I skim?”
"It’s totally egotistical. I want Daring Fireball to be a site that you can’t skim if you’re in the target audience for it. You say, “Oh, a new article from John. I need to read it,” and your deadlines go whizzing by because you have to read what I wrote."
I never thought I'd find myself agreeing with Gruber, but there you have it. Even a broken clock is right at least once a day.