User blog comment:Sannse/Blocking Best Practices/@comment-15705679-20121010204029/@comment-3474542-20121013155115

Additionally, if you have a very obvious and prolific vandal/spammer that is doing serious damage to your wiki, you can ask the VSTF for help. They have tools that allow them to deal with large scale vandalism/spam. BUT, it's like using a cannon to swat a fly (overkill in most situations). The tools are most useful for cases where only one or two users have made a lot of bad edits, so it's best to deal with minor vandalism/spam via the normal undo/rollback/report/block processes.