While analyzing a dataset comprising millions of conversations with an old version of ChatGPT, these innocent academics encountered a user who is — it’s no exaggeration to say — the final boss of AI gooners.

Specifically, this anonymous horndog spent months using the OpenAI chatbot to generate vividly detailed pregnancy fanfiction about the high school characters in the visual novel series “Doki Doki Literature Club!” (itself a bizarre piece of media that the uninitiated will need to research for themselves.)