I also enjoy all the "vibes" people list out for why they can tell, as though there was any rhyme or reason to what they're saying. Models change and adapt daily so the "heading structure" or "numbered list" ideas become outdated as you're typing them.
Nothing in the original message refers to it being clickbait, the core complaint is the LLM-like tone and the lack of substance, which you also just threw it there without references ironically.
> What, exactly, is the problem with disclosing the nature of the article for people who wish to avoid spending their time in that way?
It's alright as long as it's not based on faith or guesswork.
[1] Unlike LLM-generated articles, posting LLM-generated comments is actually against the rules.
You also have to take into account that the medium is the message[1]. In a nutshell, the more people read LLM generated posts and interact with chatbots, the higher the influence of LLM style in their writing -- the whole "delve" comes to mind, and double dashes. So even if you have a machine that correctly identified LLM generated posts, you can't be sure it'll keep working.
[1] https://web.mit.edu/allanmc/www/mcluhan.mediummessage.pdf
Let's say you are the LLM detecting genius you paint yourself to be. Well guess what? You're human and you're going to make mistakes, if you haven't made a bunch of them already. So if you have nothing better to add to a post than to guess this, you probably shouldn't say anything at all. Like you said, it's not even against the rules.