Reviewing @eicker@lemmy.world's comment history, they do appear to use 'it's not X, it's Y'—something ChatGPT is known for—unusually often.

I often think about that exact, particular, specific comic lately... for some reason! 🤔 😞

That said, OP said elsewhere:

The third screenshot is me asking if it was written by AI and not receiving a reply. The user pretty much does not reply to people, just obviously-LLM summaries to his own posts. Almost all such comments are the same amount of lines.

So if the account in question mimics a human exclusively in order to spread spam about particular websites that they are paid to promote as "authentically"-looking as possible, then I would argue that the mission is not "fucking accomplished". Or rather, at least not our mission of being able to converse with fellow humans, possibly with the assistance of the occasional bot so long as they are properly labeled as such and not trying to manipulate and scam us.

A properly labeled bot - e.g. that posts daily comics - is a great tool (even if some people choose to opt-out of such, which is their right). It's the deception that people do not like (mainly).

The writing is pretty clearly AI to me. I can point out some reasons but they'll be easy to nitpick; it's a holistic thing.

they always end the comment with some sort of wry contrast.

I do not consider this kind of preaching to the choir constructive at all: it oversimplifies any nuance in articles posted into building the echo chamber. what's constructive for discussion should be what challenges!