To me it sounds like you and your ilk are scrambling to make up reasons why Dawn is leaving. I thought the hints from the show were more than enough to prove a point.
My Ilk? Please. And no ones scrambling to make up reasons why Dawn is leaving. I've said before, I don't mind if she stays. But chances are she will leave, considering how past events are completely relevant. Do you really believe that if contest are gone next region Dawn will stay? Hell no.
These "hints" are nothing more than evidecene of a good friendship. You're mistaken them for something deeper than they actually are, and have been ever since you started posting here.