Doing TG2 as a hobby I found I enjoy the way of learning by reading some threads, trying stuff out if I see something cool, etc. Dissecting any posted clips helped me understand how the node network worked, and get and idea of how some cool tricks can be done by arranging shaders and such.
Personally in my tutorials I try to avoid saying "Enter xyz in this field", and more just say "this is where you change this value to get these types of results" - as a lot of terragen for me is messing with the numbers finding a value that i feel works with the scene (which can take awhile sometimes
). I don't want people coming out of my tutorial with the exact same thing as me (as for example, my video tutorial has a horrible result as I didn't take the time to find the values that I would be satisfied with). I want them to know where the values are that do that general thing, and then find the ones that work with their scene spending a bit more time learning. And coming out with a unique piece of art.
I think one problem with new people is they need a way to know which values are the ones that are more important to change. With so many options available they get overwhelmed. But about 50-80% of settings on a given node will be ones you touch never and can basically ignore. They are the ones you learn what they do when you come to needing them, or when you feel like just seeing what it does.
