Yeah, what he said

I love the Internet. Whenever someone writes about how a certain group of people behave, inevitably commenters will prove his point by example. Either they’re not reading past the first paragraph, or they’re so self-absorbed that they simply can’t recognize themselves in his words.

The third possibility is that they’re just drive-by commenters who don’t even bother to read the words of someone who disagrees with them, and just regurgitate reflexively.