Creating new threads means more to sort through. The old crowd knows that adding discussion onto whats already there WAS the common curtousy thing to do. God only knows how you guys got it in your head that keeping discussion in as few threads as possible was bad.

look it up on "Roberts Rules....." the world wide standard for order and etiquette.

As it directs there, they standard in online forum style debate is to maintain the discusion on topic in as few streams as possible. (paraphrasing) it goes on to dictate the opposite in standards in which unused thread streams are removed after a time of neglect or disuse.