Reddit was the playground for ai slop long before commercial LLMs existed. Subredditsimulator was like 2014 or 2015 and people were fucking with markov chains and other shit that dated back to like the 90s or even 70s but that also had some people experimenting with rudimentary neural networks, though obviously none with the computing power of shit like chatgpt or gemini. And obviously that whole experiment was inspired in part by the fact that botted comments were becoming increasingly common and obvious on reddit in the years leading to it, so why not make a subreddit where everyone participating is a bot?

There’s no proof but openai researchers may have been fucking around on that sub. There was a fairly drastic increase in quality of posts in that sub around the time openai would’ve been making gpt1 (2018ish) and then they began aggressively scraping the entirety of reddit, quora, etc for content. Could just be a coincidence though and they’ll never confirm it even if it’s true bc redditors will flip shit