Board Thread:News and Announcements on the Wiki/@comment-1977640-20131208205150/@comment-8043962-20131224090955

I kinda understand how it works. But one problem: There must not be any pages in the custom namespace before it is created -- this means you can't have any pages (including redirects) with a title of the form "Custom namespace name:Pagetitle". Any such pages will be inaccessible after the namespace addition. :|