@LeviKornelsen I'm still open to change, but it seems like the best fit at this point. I was seriously considering going "Assign to the Public Domain," but the last thing I want is for ArM to be Disneyfied.
I believe offering a CC-BY-SA license to the world at large would not preclude us from offering other licenses to other parties with different terms (with or w/o SA). But it would give a safe harbor to lots of creative projects, without requiring permission or action (or admin) on our part.