fartsinger

Procmon if you're a masochist, or do a before and after snapshot. Here's one tool for the latter: https://www.nirsoft.net/utils/registry_changes_view.html

I've never been a mod but I guess people do it because they like it, or they like how it makes them see themselves. They might join a protest for the same reasons. Being demoted and becoming a nobody, on the other hand, doesn't sound like much fun.