Hmm, well I wouldn't call it hatred ... at least not out loud. The thing is, for these fans, for Sports fans in the US there generally are places to do this sort of thing. Most of it happens via blogs or blog-like sites (http://joyofsox.blogspot.com/, http://www.bostondirtdogs.com/). I think that sort of format works well for this (threaded comments or not). Most of the Red Sox / Yankees stuff is "around the water cooler" talk. There's no challenge finding discussion (save maybe finding a Yankees fan around here, but I'm not sure I want to talk to Yankees fans about this rivalry). Also, you really need to clean up your navigation. There are 5 horizontal levels of navigation and that's a lot of work to try to find what I'm looking for. You might be trying to do too much. Also, the "passion room" might have different connotations here than you expect...