re: Recruiting board admin

I know I saw Fred mention somewhere about new admin features. How difficult would it be to allow admins to ban posters on a case-by-case basis from specific boards instead of the whole site? Maybe this feature already exists but is not easily implemented, idk. The RB could be policed more strictly or with a specific set a rules apart from the rest of the site. Because let's face it; posts on different boards are not created equal. Something that could pass as a normal post on the OT could sound terrible on the RB.