Submitted by Josh Gilardi on June 11, 2014
Recently, I learned a useful Vim trick. One of our hosted clients has a Dokuwiki instance that we help manage, and they were having problems with a lot of spam user accounts being created. We added a CAPCHA to the wiki to make it less convenient for new spammers to join, but there were a lot of bad accounts already existing. By "a lot," I mean there were 112,808 accounts listed in
users.auth.php, and only about a dozen real project personnel using the wiki on a regular basis.