Or maybe the 2 month old account posting repetitive comments and using the exact patterns common to AI generated comment is, actually, posting LLM generated content.

> So what if they are? Then they'd just be stupid, futile thoughts leading exactly nowhere.

FYI, spammers love LLM generated posting because it allows them to "season" accounts on sites like Hacker News and Reddit without much effort. Post enough plausible-sounding comments without getting caught and you have another account to use for your upvote army, which is a service you can now sell to desperate marketing people who promised their boss they'd get on the front page of HN. This was already a problem with manual accounts but it took a lot of work to generate the comments and content.

That's the "so what"