User blog comment:Mira Laime/Those Weird Things on the Internet/@comment-168424-20180626174919/@comment-33359237-20180627050851

There is a wiki feature to require all contributors to log in; it's up the admins of a wiki to turn that on. I did that recently on a wiki because of trolling by anons and it worked fine, reducing the trolling to much more reasonable levels. Sure, there might be some useful anon contributions that are lost now, but IMHO the people who actually care about the content of the wiki should be willing to log in.