We cover boxing on the site also, so I think it's better to keep 'em seperate in case we ever develop a loyal boxing following also. For the most part now I'd say we're 90% MMA, 10% boxing, even though we try and cover both pretty good. We cover MMA up and down, but only the big boxing stuff. Either way our search engine hits for boxing are great so I have to assume we have a boxing audience as well.
As far as a fight spoiler forum, that's a great idea. I couldn't think of all the different kinds of forums we should have, that's definitely one I missed. I'll add that to here soon.