I'm not sure if it's AI, because it looks like a classic of shitposting: if you see a fresh topic, respond as soon as possible, because you need to meet the weekly quota of the signature campaign. And of course, it doesn't matter to them who and what has already been answered there.
And the second popular trick: if you can't write anything new, just paraphrase what someone else has already written. It's like you're maintaining a dialogue with this.

I just send reports to such shitposts almost every day.