Sometimes hearing other peoples opinions can spoil something for you. I’m kind of glad I’ve never found any online communities based around Xanth now, because that’s never even crossed my mind, and I’m sure there are many others that would do the same, where it’s just some fun, silly story books from my childhood for now.
I’ve seen them called digital gardens, because they like something you maintain and let grow with no specific purpose.
https://www.technologyreview.com/2020/09/03/1007716/digital-gardens-let-you-cultivate-your-own-little-bit-of-the-internet/