Board Thread:Support Requests - Community Management/@comment-27082549-20200129141758/@comment-3026053-20200129152049

If the spam users in question edit according to a certain pattern, you can request an Abuse Filter, but as Tupka already noted, there is no block option for users from a certain wiki. If the vandalism is too severe for you to clean up, you can always report the user/request help via the VSTF wiki.