Extend spellcheck to asking questions like "does it meet HN rules" "how can I improve my writing" etc. Though these are the kinds of questions that do at very least still meet the spirit of the rule, I suppose.

People who are particular about spelling do not want to write misspelled words! It's not about whether you/others will tolerate it. I have my standards, and I hold to them.

I personally don't use an LLM to spellcheck (browser spellcheck works fine), but I see no problem with someone using an LLM to point out spelling errors.

And while I don't complain about others' spelling errors, I sure do notice them. And if someone writes a long wall of text as one giant paragraph that has lots of spelling/grammatical issues, chances are very high I won't read it.

Some people write very poorly by almost any standard. If an LLM helps the person write better, I'm all for it. There's a world of a difference between copy/pasting from the LLM and asking it for feedback.

I think that people subconsciously perceive grammatically correct and stylistically appropriate writing as more authoritative. And author is perceived as smarter and/or better educated person.

At least that was the case before LLMs became a thing, now I'm not sure anymore.

Obvious spelling mistakes are usually ignored, but there are certain types of writing mistakes that really trigger the type of people that frequent HN.

For example, use "literally" for exaggeration rather than in the original meaning of the word and you'll likely trigger somebody.

I've been hit by spelling/grammar noise once or twice. Those are usually downvoted and/or flagged.