Scribe
Legend
Not to pile on, but I dont think this is it.Because human suffering is part of those genres, and WotC is afraid of depicting it.
I think its about not having a hint that the PLAYERS engage in or promote, or tolerate, that suffering. The only image Wizards pushes, is a hopeful, heroic, positive, one that the players will rise above, be great, win, and make friends with the villain's along the way.
