It's a bit scary that you actually believe that, and I seriously hope you're in the minority. The Rumbles were always meant to be almost an afterthought of electricferret. The Official Matches and Back Issues are what really bring people in.
CBUB, from the very beginning, was about deciding who could beat who in a fight or competition. It was never meant to be a fanfiction.net-like site. The Rumbles still reflect that. On the Official Matches board, however, there's way too much emphasis on the setup. People talk too much about the setup, about grades, and how well written or bad written it was and what grade it will or won't get. They barely actually talk about who would win the actual match. That's why I think the Rumbles are the heart of CBUB: because they are doing what CBUB should
be doing, discussing who would win over who and not caring about how the setup is written.