New muzzleloaders are coming onboard in a different world than many of us really old-timers. On one hand, muzzle loading in the 60's and 70's were more active club-wise - formal and informal "shoots", rendezvous, get-togethers. As time went on, lots more choices of off-the-shelf guns & accessories became available of a traditional nature hit the market. Civil war centennial and later Bicentennial got history buffs fired up. Folks had FUN.
But - to "get into" muzzleloading, folks had to actually, physically go to those places & events to become involved or read actual books/magazines. We had mentors - even government ones (state conservation depts even) - who took others under their wings. It was a personal thing. Paper catalogs were the main way to buy what was needed and stores actually had designated muzzle loading departments, fully stocked.
Internet changed things a lot and people, in general, have changed. What used to be meaningful social interaction has been replaced with impersonal, self-centered self-interest and instant gratification. No need to form social networks, travel to gunshows, swap/trade, nor master the nuances of traditional muzzle loading to hunt. Pick up a "real" bound book ,,nah, just Google a U Tube. Difference between Cliff's Notes and a hard copy.
If it were not for forums like this one, there's really not much of a way for many people to learn nor "talk" with like-minded people. Still, there are a few really good clubs and groups "out there" having the same fun we have always had. New people just need to find 'em, put down cellphones, and join the fun.