How do you expect to get better at it then if you avoid the hard work and emotional weight of fixing it?
This seems especially relevant for non-English-fluent commenters, who are increasingly using LLMs to be able to communicate more effectively on an English-only site like Hacker News than they'd otherwise be able to do.
It's still daunting posting in a second language, and LLMs are an attractive solution to that (depending on your definition of 'solution').
In any case, I don't think it's a bad thing to want to communicate as clearly as possible, and if an LLM helps you do that, I ain't one to judge. Sure, ideally I'd want to read folks' thoughts without the LLM-induced layer of vaseline smoothing them over, but even that's better than not reading them at all :)