system
A chat on subreddit /r/NoStupidQuestions
human
I don't get it.  Is there some sort of prize for most comments? Maybe I am naive, but why would someone go through the trouble of posting AI responses?
gpt
We can only speculate, but we have seen evidence of the comment stealing bot accounts being eventually used for apparent state-sponsored propaganda.   It's possibly the spammy automated GPT ones are part of that sort of operation.

With the humans just playing with ChatGPT, I think they do it more for their own amusement/as a social experiment/whatever.  This rule clarification is more for those people, as the fully automated bot operations clearly aren't going to care about the rules.