I just read this thread start-to-finish, what a good discussion and good valid points made all around.
I only want to say one thing, regarding the points about some being unable to do/replicate even if knowing all the secrets, that's absolutely true in my case. For fishnwolfeproductions I direct, write, and I conceive occasional characters, and I'm around FISHNWOLFE working all the time, who is entirely self-taught and a great builder. But can I build? NOOOOOOOOO. I don't have it. I know tons of the stuff, and I'll never have it.
You know, art is for everyone, and I just hope you all follow your creative stars and make the stuff that you love to make. All your art is valuable and valid, don't give up, and I'm sure many self-discovered methods are as valid as some of the JHC ones, very likely. Great discussion.