Different methodologies work for different chapters, I think. Stickies are usually meant to be resourceful on boards, not reapers of discussion (except for "introduce yourself" or something).
Right now, if exposure is actually a problem, I'd say throw links in a group description and force feed that info in a few articles. Or unpin it, if you're not getting a desired audience.
And pin something telling people to pay more attention.
[Edited on 04.12.2012 10:40 AM PDT]