That doesn’t seem like LLM writing? “But that it was copied” looks like a typo for “but then it was copied”, and that is a pretty human mistake.
At that time, there were a whole bunch of flagged-dead comments from newly-created accounts that had compound-word usernames (such as the text I linked to above from 'earlydeveloper'.) So, if these are people manually writing those posts, I understand the behavior even less than the bot hypothesis.
BRIAN: I'm not the Messiah! Will you please listen? I am not the Messiah, do you understand?! Honestly!
GIRL: Only the true Messiah denies His divinity.
BRIAN: What?! Well, what sort of chance does that give me? All right! I am the Messiah!
FOLLOWERS: He is! He is the Messiah!
s/messiah/LLM/ig