I'm not entirely sure whether this is the place to ask for help, but... I'm the sole moderator of an extremely small, niche wiki, and I've had a vandal show up 4-5 days in a row now. I indefinitely block them every time, but they apparently have multiple accounts from 2020-2021 and after the 24 hour IP block, they're right back at it.
You know, replacing main article images with inappropriate things, moving pages to new titles, saying stupid things in the discussion feed, etc.
I'm not sure what to do. The writing on the wall is they're gonna keep doing it for who knows how long, and I don't want to repeat the same actions over and over and expect different results.
Any help would be appreciated! I protected a handful of important articles and images, but I obviously don't want to shut down an entire wiki because of 1 person.