Perhaps we should expand the description of that section to just. Most of the chatting in there is A) anime, B) Sci-Fi, C) TVs or movies, D) models and toys, E) Gaming consoles, F) mechanics (cars, engines, etc) and electronics, G) Computing, H) everything else that is somewhat related to the previously mentioned (i.e. geek talk).
Expanding the description would probably be the best course of action if any is taken. Off-topic discussions are prone to be mindless and a waste of space so even I would say no to an off-topic section.