I primarily work on the wikis hosted by Fandom, an offshoot/partner of Wikipedia. I'm an admin on about four dozen wikis there, with bureaucrat rights on many of them. The list can be seen on my profile on Community Central.
When I venture out to other wikis, such as this one, it is usually because I'm cleaning up vandalism or fan fiction being cross-posted so often that it's about to become spam or vandalism.