By not closing poor quality threads, it in fact directly encourages poor quality threads. Not closing those threads DOES make it a different board, even without changing the rules. The problem isn't that the threads are "fun"; the problem is they aren't discussion, which this board is for. Making a new board for non-discussion material is the best option.

Before Pig nitpicks at my post like he does with everything else, no, discussion is for serious discussion on serious subjects. Off-Topic is for fun discussion on fun subjects.