jase:
I could tie it into the "By default, post as your primary character" in your Game Preferences. Change it to "By default, post and roll as your primary character".
That would be amazing! In games I GM, I tend to post as me, the GM, who is making a post wherein an NPC might say or do something. I don't tend to set up discrete NPC characters anymore, so the lack of a dice roller default is kind of annoying. If I log in from a different (home/work/laptop) computer, then I have to reselect that yes I want to post as, I don't care, I'm going to specify in the post who's actually posting so just let me post as anyone. A default would be great! :D