User blog comment:Rupert Giles/Global Navigation Update/@comment-4700340-20141216210642/@comment-5645428-20141223100629

So that's why it has kept showing Mark Read options for both "This wiki" and "All wikis" when I only have notifications from one wiki. Speaking of which, there's an inconsistency: apparently it should be saying "This wikia" and "All wikias"...