Exactly. If it's substantially the writer's own thoughts and/or words, who cares if they collaborated with an LLM, or autocomplete, or a spelling/grammar-checker, or a friend, or a coworker, or someone from Fiverr? This is just looking for arbitrary reasons to be upset.

If it's not substantially their own writing or ideas, then sure, they shouldn't pass it off as such and claim individual authorship. That's a different issue entirely. However, if someone just wanted to share, "I'm 50 prompts deep exploring this niche topic with GPT-5 and learned something interesting; quoted below is a response with sources that I've fact-checked against" or "I posted on /r/AskHistorians and received this fascinating response from /u/jerryseinfeld", I could respect that.

In any case, if someone is posting low-quality content, blame the author, not the tools they happened to use. OOP may as well say they only want to read blog posts written with vim and emacs users should stay off the internet.

I just don't see the point in gatekeeping. If someone has something valuable to share, they should feel free to use whatever resources they have available to maximize the value provided. If using AI makes the difference between a rambling draft riddled with grammatical and factual errors, and a more readable and information-dense post at half the length with fewer inaccuracies, use AI.