A type of WikiBot that tries to prevent a particular page, which the bot author doesn't like, from existing.
Operation is simple. Periodically, if the page is found to exist by the script, the script deletes it. Most such scripts then DoubleDelete it with a second IP, to keep it from being restored via EditCopy. (In addition, in the current Wiki implementation, this removes the page from QuickChanges; WikiGnomes who are QuickChangesJunkies might not know it is gone).
A few defenses against WikiPageDeletionBots (that WikiGnomes can employ):