Well, it is made up as Lucas goes along. Anyway, he isn't some Godlike being who I feel obliged to give "oral services" to. I look at the art and creativity of the people that worked for him, and I see some really exciting and brilliant ideas, even the ones that never made it onto screen.
As for these forums, http://www.lfnetwork.com/about.php
pretty much disclaims "the ol' mighty" from getting involved.