Sometimes people find (likely via Google) an old post I made and start yelling at me in the comments. They write some long-winded reply, even though nobody is reading the post or the commments anymore.
If you do that, it's fine, but recognize that it's all masturbation. I'm probably just going to skim the comment if that, but I definitely won't reply. I'll probably publish it, but if the post is two years old, nobody else is going to read it.
Some people have too much time on their hands.