With the skins gone I think there needs to be some consequences to at least deter player killing when it's unnecessary. Such as when your humanity reaches -10,000 you struggle to come to terms with your actions and break down periodically, get the shakes and make panicky noises. The only way to then regain your composure is to take painkillers or morphine, otherwise ride out these 'episodes' till they subside after 10 minutes or so... the lower your humanity gets the more often you're afflicted, to reflect the burning guilt I'm sure bandits all feel deep down /sarcasm. This would also be a subtle giveaway if you meet someone who appears trust worthy in their language and demeanor, but then starts to tweak and munch on painkillers all the time...