People have actually been doing stuff like this since way before the LLM thing, I've bought books containing collections of stories from websites.

Craigslist Confessional: A Collection of Secrets from Anonymous Strangers https://www.amazon.com/Craigslist-Confessional-Collection-Se...

PostSecret: Extraordinary Confessions from Ordinary Lives https://www.amazon.com/PostSecret-Extraordinary-Confessions-...

Stoned, Naked, and Looking in My Neighbor's Window: The Best Confessions from GroupHug.us - https://www.amazon.com/Stoned-Naked-Looking-Neighbors-Window... (actually a great book)

People can and will profit from things you do in life for free, I feel like we accepted that a very long time ago?