User blog comment:Rappy 4187/Technical Update: April 27, 2016/@comment-9380534-20160428134412/@comment-24473195-20160501113705

>@Dessamator just to note, the replacetext extension even if you get staff to activate doesn't do a thing. supposedly works on article titles, which is useless. the dev scripts on the other hand, ever since i clicked js review; all broke - doesn't matter what editor i choose or browser...

So basically the extension just renamed pages?

That seems like a bug unless wikia is/was using a different extension (not ). As far as dev scripts are concerned, it seems likely that there are syntax errors on that wiki.