User blog comment:Mario&LuigiBowser'sInsideStory/I'm planning to adopt a wiki, but I got 1 question./@comment-5811199-20160916040208

Hey - unregistered users count as users in the community who may want a say on whether you should adopt or not. So yes, you can adopt this wiki as long as any admins haven't logged in or edited in the last 60 days - make a blog post in the wiki, and even if no one responds it will be fine.

Also, next time put this in the help forums :)