My friends have been playing https://krillion.io/ which is a game where you try to think of rare answers quickly. It's definitely created with LLM assistance and I (semi jokingly) believe it to be a data mining operation so the text extruder can be trained on rarity (similarly to how a captcha is actually data mining for bicycle identification). Or at the very least it's training us to give rare text to computers, which benefits the operators more than it does us.
I have been playing "golf rules krillion" instead - a self imposed game on the same website where I have to answer all the questions validly but with the most common answer I can think of. My goal is to get 70 points exactly, 10 on each question. I have not succeeded yet!