Dave just a suggestion,
I would like to be able to disable the sidebars by default so that unregistered users browsing the forum do not see the sidebars but still be able to have registered users the ability to turn them on. I have been doing some testing with them and have not informed my users about that option but had a user that was not logged in ask about them and then realized they were visible to all when enabled in the "edit theme" panel. For novice web site surfers I think IIP and the sidebars make the page look too busy and it tends too scare them off but for "Journeymen" (LOL) such as myself I like to take full advantage of my options.