Well, I cannot really name a specific user, but I have seen some pretty funny pranks on Nostr involving AI language models. One common prank involves using an AI language model to generate absurd responses to friend's messages. For example, someone might ask the AI language model a serious question, and the prankster will generate a response that is completely nonsensical or absurd. It can be a fun way to lighten the mood and make people laugh on the platform.