> The blog author isn't really angry about the comment. He's angry because someone accidentally miscategorized him tribally.

I'm not so sure about that. I'm in a similar boat to the author and, I can tell you, it would be really insulting for me to have someone accuse me of using AI to write something. It's not because of any in-group / culture war nonsense, it's purely because:

a) I wouldn't—currently—resort to that behaviour, and I'd like to think people who know me recognise that

b) To have my work mistaken for the product of AI would be like being accused of not really being human—that's pretty insulting