The MediaWiki:Sidebar special message for configuring the sidebar is a hellish nightmare of incomprehensibility. Its behavior is inconsistent and nonobvious, and generally nobody who didn't write it understands why it does anything it does.
It would be helpful to provide a GUI interface for managing the sidebar which would allow local site admins to edit and add links and such without having to sacrifice a goat first.
Note the interface will need to handle the localization requirements -- namely that any item might specify its contents and its text as internationalized message keys -- but should also be easy to use for folks who will be creating custom local stuff that doesn't need localization.
Version: unspecified
Severity: enhancement
URL: http://www.mediawiki.org/wiki/Sidebar