Y'know, sometimes I think some categories are better off being combined.
Separating traditional and modern ML made sense because there was lots of discussion on both.
Why not just have a general classified section? Those are usually so slow that no harm is done by lumping things together.
In fact there's benefit to combining things. Several people may have an interest in both muzzle loading and Cowboy Action Shooting. BP items could be sold on the same place.
For instance, say I'm looking specifically for a CAS sixgun. But someone else is looking for a muzzle loading pistol. I may not find my sixgun, but I may stumble across someone else's "want to buy" add and consider selling my Lyman Plains Pistol.
If the boards are separated, then I would never have looked in the Muzzle loader classifieds because I'm not looking for anything ML related.