I'm wondering what it is that confuses so many people. Perhaps something should be made a little clearer?
My idea would be to change word "Username" in the prominent blue box on the Community creation page to "Community". Secondly, I think something in boldface on this page should say that you need to be logged in as the maintainer, or extra controls should be added similar to those on talkpost.bml... but that's getting too cluttery, I imagine.
Please, pour out your ideas.