I'm Dyslexic and so also lack confidence in my writing. LLMs are transformative for people like us, if they had been around when I was at school it would have been an incredible experience.
I can also completely understand the motivation to use it on HN, when I make mistakes in my comments, stupid ones like using the wrong word, and then get called out it hurts.
If you just used it as translation service then I see no need to even bring it up, but if you wrote three lines of actual information and had a computer expand that to three paragraphs of text then it should be common courtesy to disclose that people are wasting their time reading the added boilerplate
I can also completely understand the motivation to use it on HN, when I make mistakes in my comments, stupid ones like using the wrong word, and then get called out it hurts.
Chin up, you built a useful tool!