User blog comment:ScauldyTheScauldron/Help!/@comment-452-20150428173927

One of these things is not like the other.
 * http://mortalkombat.wikia.com/wiki/MediaWiki:Common.js
 * http://realsteel.wikia.com/wiki/MediaWiki:Common.js

$(function {   if (window.disableUsernameReplace || mw.config.get('wgUserName') === null) return;    $('span.insertusername').html(mw.config.get('wgUserName')); });