User blog comment:BertH/Layout and navigation updates coming October 3/@comment-93604-20120920221349

"Our click tracking shows more frequent use of the custom items on the wiki navigation for wikis with this newer style."

The Cannabis Wiki uses custom site navigation which is far better than the current navigation or the new expanded Wiki Navigation. See full-size screenshot. See the main page while it still has the custom navigation menus that extend all the way to the right side of the content space:
 * http://cannabis.wikia.com/wiki/Main_Page

The best navigation menus, by far, were the nested menus in the left sidebar before the Oasis/Wikia skin got rid of the left sidebar. See example from June 26, 2010 here: The nested part does not activate in the archive page, but you can see that the arrows in the sidebar navigation menus point to nested menus.
 * http://web.archive.org/web/20100626090129/http://cannabis.wikia.com/wiki/Main_Page

Some suggestions for improving the new expanded navigation menus:
 * http://wikinav.wikia.com/wiki/MediaWiki_talk:Wiki-navigation

Other ideas:
 * http://cannabis.wikia.com/wiki/Portal:Nested_hover_menus