> Do you really need an automated tool to tell you whether you're breaking common sense guidelines?

Lots of people break HN guidelines. I see it virtually every day.

> And why would you want to "improve your writing" for an HN comment?

Some people like to write well regardless of the medium. Why is that a problem for you?

> I think people here value raw authenticity more than polished writing.

Classic false dichotomy. Asking an LLM for feedback is not making your comment less authentic. As I pointed out elsewhere, it can make your comment more authentic by ensuring that what you had in your head and what you wrote match.

Go and study writing and psychology. For anything of value, it's rare that your first attempt reflects what you meant to say. It's also rare that the first attempt, even if it reflects what you meant, will not be absorbed by the recipient. Saying what you mean, and having it understood as you meant it, is a difficult skill.

> Do you really need an automated tool to tell you whether you're breaking common sense guidelines?

I say this on behalf of all of my neurospicy friends… sometimes, yes. Especially having taken a look at the whole list of guidelines, I definitely am friends with people who would could struggle to determine whether a given comment fits or not.