Ah yes, dice rolling. Speaking as someone who plays a lot of tabletop RPGs I understand the appeal in dice rolling, but honestly, such a thing wouldn't really work here. Everyone uses far too many characters from too many places for any dice system not to fall flat when confronted by the differences. Part of the charm, to me.
I'm not entirely sure what the point of this thread is? It feels a little bit like a jab at those who post here, but I'd like to think that's not the case. Also having been on quest boards if not the 4-Chan ones, I can say they really aren't the place for character workshopping this is true. Not to say they're bad, just that they are very much for quests. Character help is about as far as you can get from the actual topic of those boards insofar as I recall.