especially for forums with many pics it would be pretty cool to have a board that shows all photos posted or linked to in the forum in a pinterest / thefancy-style manner. Could be integrated as an extra page (people click on in the navigation bar).
Goal is to show all photos in a beautiful manner and link the pics to the original pages (admins could also implement viglink / skimlinks to monetize outbound traffic) and to the related thread. It should be kept simple - showing the pics in chronological order and make them searchable by users that posted them. Would be an awesome update (I am willing to pay for that !