I agree with the policing thing. I do that from time to time. Hacker News is one (maybe the only one) good place on the internet. Let's try to keep it like that. Snarky remarks are clearly against this site's guidelines. And for good reason: they do not change anyone's mind, and can result in polarizing responses. That's not what HN needs.
I presently view that kind of cathartic expression as worse than neutral and actively harmful. That's not the same as being able to change someone's mind, but it's also still bad.
I legitimately do not understand the idea that it’s harmful if you simultaneously argue that it has no effect on anyone but catharsis for the poster.
If it doesn’t change anyone’s mind then why care?
If it does change someone’s mind then why argue against it? Unless you mean to say that you think it’s actively changing people’s mind in the opposite direction of the original posters intent