User blog comment:DaNASCAT/Technical Update: May 6, 2015/@comment-452-20150508142126/@comment-452-20150508145223

Haha, I originally was going to add a line saying "Special:WantedPages" would be better named "Special:RedLinks", but I didn't want it to be misinterpreted as a request.

Incidentally, I assume that at the time the WantedPages was named, the term "RedLink" was not yet recognised as meaning "A link to a page which did not exist" and that "Special:LinksToPagesWhichDoNotExist" was deemed to be too long.