I think this is a great question to pose, and I have a lot of thoughts about so many points brought up here so far. To begin, the best thing I did for my education early on was find someone with more experience than me and ask them if there was any help they needed during repotting season. This is a hands on hobby and all the reading in the world does little good if you don't get your hands dirty. Those hands then need repetition to form muscle memory, so go do whatever you just learned as many times as possible. By offering my extra set of hands I got to watch and actually do so many of the repotting tasks that intimidated me in a setting that offered guidance. Now each repotting season I put the offer out to anyone that would like to lend me a hand to come over and get some experience with these tasks. Two people sifting soil is much faster than one, and having an extra set of hands to hold things in place is invaluable. Bring a six pack, a bottle of wine, or a bag of your favorite coffee and you'll probably be invited back to watch or do some wiring and pruning : ) When my friend and mentor had to go in for surgery and requested my help moving some larger trees to the greenhouse, he thanked me by giving me some material he was no longer interested in but was far better than anything I owned at the time. We all win.
In regards to new club members feeling shy or unwelcome, I feel the last Bonsai Society of Portland president, Lee Cheatle, had a wonderful and simple solution that should be replicated everywhere. He would begin each meeting by asking any new attendees to stand up. He would say "Look to your left, look to your right, look in front of and behind you. Every one you see here was once standing right where you are. We were all beginners once, and we are all here to answer any of your questions, so don't be afraid to reach out. We are all friends here" This statement always set a tone for every meeting not only of inclusivity in the club, but a reminder to the more experienced members to actively be inviting and open to the new members. There is a reason there are almost 400 active members in this club.
I think it is in our best interests to share what we have learned, at whatever level we are at. If you are actively seeking good information, then you have good information to share. Both of my parents were teachers, and I teach classes in my chosen profession, so although I am far from a bonsai pro, I have a knack for sharing what I have learned, and my love for bonsai makes it a joy to help others learn and foster their passion for this hobby. So when the founder of the small group that I was first introduced to bonsai through became ill, I picked up the torch to keep the group running. In order to do a good job presenting what I know and answering questions to the best of my ability, I had to up my game. "If you want to learn something, read about it. If you want to understand something, write about it. If you want to master something, teach it." Getting ready to teach a class will force you to learn a lot. With so many resources available now, you won't last long spreading bad information. The nursery that hosts the group offered compensation for my time, so I arranged to run the group in exchange for store credit. Wire, tools, supplies, and material now comes cheap while I expedite my own education and gain experience. Again, we all win.
These are a few things I think will help get people new to the hobby learning faster and building a sense of community in bonsai. Now the pros don't have to spend their day answering newb questions, and the people coming into their classes and workshops are better informed and operating with some experience under their belt. I don't think there is a "quick fix" for education in bonsai, but if we can be honest with ourselves about our strengths and weaknesses and find a good place within the educational hierarchy, and of course be clear with others about what we do and don't know, and what is read knowledge vs. experience based knowledge, we can all help each other progress and grow. If you feel confident teaching new people then offer beginner classes, or arrange to host a group that will bring interested people from your area together. If you want to charge a small fee and your community supports it then you can buy a new pot or some material to work on with what you earned. Either way your time will be well spent and you will likely get more in return than you expected.