I think the problem with sports is that the community is naturally fragmented by team, so while there may be a decent number of NFL fans around, it breaks down to 10-20 per team, and when 90% are lurkers, it is hard to get any discussion going.

We could try to have a league wide game day thread, but I’m not sure that would help - people would want to talk about the game they are watching, which again fragments the conversation.