Board Thread:General Discussion/@comment-25523075-20150522165708/@comment-25428589-20150522170049

The abuse filter is an extension used to automatically review edits. I know it's used to tag blogs as possible spam here and, at my home wiki, we use it to disallow pages which are possible violations of our rules on spinoffs. The user Abuse filter, I believe, is used to issue blocks, if the filter is configured to do so.

You can read more at the extension's page at MediaWiki.

Edit: Ah, ninja'd!