I have looked into doing this, and it may be possible. I will try to figure out how to limit visibility to those interested.
On another (4 wheeled) motorsport forum I contribute to we have a private area that can only be accessed by members who have the forum administrators permission.
Permission is granted, or refused, via a Private Message request from the interested member.
This outlet has allowed a lively discussion on rules and eligibility questions that parallel the Evo conversation here to continue behind a not-quite-closed closed door.
The usefulness and balance of this approach obviously depends on the administrators impartiality.
Marcus