Not to found of the new categories as it makes the forums harder to navigate.
Old OT worked well because we didn't have a lot of new posting and one could view all the new threads without having to click around, the more you have to click the more annoying navigation is.
I wonder if the forum could be set up to view the last 100 or so new posts in a forum block(The Off-Topic Forum,The Games,The Politics,ect).
Or new posts expanded to the last 10 or so days.