User blog comment:Rappy 4187/Technical Update: October 2, 2012/@comment-4826688-20121002170222/@comment-3335785-20121005085758

It's a ToU violation to edit the contents of the On the Wiki tab as I understand it. If it was freely editable, the links that make up the tab could be replaced or deleted. Hence javascript is the option left.

From my understanding of the conversation that arose when the links were added, the extra links must appear after the standard ones, as opposed to before the standard links.

It's also a ToU violation to edit the links on the tab such as changing Wiki Activity to Recent Changes, although you are free to do that through your wikia.js. Having said that I would recommend Pecoes' Wikimarks if you wanted to change the links for yourself. Far less cumbersome, and has far more features than the normal editor would think to add in themselves.