Board Thread:Support Requests - Community Management/@comment-25752272-20150314124059/@comment-3026053-20150314130321

To continue on what MichiRecRoom said, you can indeed block an IP range, though in this case, that would be ill-advised, since you don't know who you'll be blocking, thus triggering a lot of false positives. It may become a viable possibility down the line, but at this moment, I'd stay away from that.

Another option is to disable anonymous editing on your wiki, though again, that affects everyone and will not necessarily stop the vandalism, as they can just make an account to vandalize.

And as a VSTF member myself, contacting us on our wiki or our IRC channel is always a good option to go. We have tools to aid in the cleanup and stopping of vandalism.