I swear, I am starting to feel like these complaints about how "obviously" something is AI written are the human equivalent of "you are absolutely right" -- it's like some kind of automatic response now
I don't know how to explain it, but I've interacted with LLMs for multiple years now, and especially a lot of time with the recent-ish frontier models, so I can detect most AI writing quite reliably. Sure, you might disagree, but I'm fairly certain this entire post is an LLM output.