You might look at Archive of Our Own, which has a large volunteer cohort of tag wranglers, and the work of Ludi Price on the information behavior of fans, when you get around to exploring how people manage large taxonomies and combine free text with controlled vocabularies.
Planet Word Museum in Washington, DC
Hi there! I'm Kimberly Hirsh. My pronouns are she/ her/hers. I'm somebody's mom. I work as a school librarian. I have a PhD in information and library science. I love to read, play tabletop and video games, and make things. I used to perform in theater and improv comedy and I may one day again. I have been extremely online since 1993 and still enjoy tinkering on the web. I manage multiple chronic illnesses. I'm married to my kid's dad. We have a cat.
Want to get in touch? You can reach me by email.