User blog comment:DaNASCAT/Technical Update: August 16, 2011/@comment-4053809-20110817174436/@comment-184532-20110817193258

Kirkburn comes from WoWWiki.

Toughpigs is an editor from Muppet Wiki, but I find it peculiar that none of their products are enabled on the Muppet Wiki, why is this? Certainly goes against Wikia's own terms of use to pick and choose what user experience and creates a conflict of interest when a Wikia employee does it. Currently when you create a new wiki on Wikia you get:
 * Top Ten Lists
 * New Editor
 * Achievements
 * Blogs

Muppet Wiki has none of these features, all 4 of them are disabled.

Trevor (Ohmyn0) comes from Scrubs wiki.