Well I'm going to take a shot in the dark on this.
I would say on a daily basis I would notice roughly 5-10 new posts with the most I think I ever saw was 20-30 new posts.
The purpose was as the addy stated and that was mainly brass, but it had sub-forums that really didn't amount to alot of traffic.
Had your normal feedback area,
Brass of course
Rules
reloading area
casting area
and things of that nature
Not nearly as fast paced as here.