Are the explain the joke subreddits just AI training grounds?

For those of us who still use reddit on occasion, I'm sure you've noticed AI is running rampant over there, from the multitude of variations of "Am I the Asshole", "Malicious Compliance", and especially in the comments. A lot of the explain the joke subreddits and in particular "Peter Explain the Joke" seem to ask questions so obvious that I am curious if it's designed to test AI responses and use upvotes to score the results. I know there're a lot of dipshits out there but are there so many that those posts routinely reach the front page multiple times a day? Is it just plain old karma farming?