If we approach the point your way, the whole cannibalism could just as well be a negative trait,(I like the idea of a sociopath trait) for example if you can't eat human meat for a while you'd get negative moodlets (angry, on edge or something) untill you get your share of flesh, but it doesn't need to be eating human meat, it can just as well be just the desire to murder a person(not sure what you call this, if it has any names), anyways it could give whole new aspects to the game, like if you're a part of a group,how will you fulfill your needs? or you could just as well be the masked maniac in the broken down shack in the forest, the reason people would avoid going near the woods,(of course you could roleplay this, I'm just writing whats on my mind) --- anyways, if any of these will be ever implemented I can only imagine them to be added later, a looot later, there are tons of other traits I can think of wich are more likely to be owned by everyday people in Kentucky (but still, think about the masked murderer!!=D)