Its a roleplaying game, its a great avenue to explore controversial topics.
In a sense, this is true. So long as you can find other players willing to cooperate in that exploration. YOu just have to be aware that when other players object to particular controversial topics, that you don't tell them to pack sand, and continue to ram it in their faces.
Drugs have always played a huge part in civilization. From the opium wars in China, to Afghanistan and beyond. I think it adds an excellent real world issue to Dwilight that can be explored in the Dwilight context, an element that allows the world to have more depth than being a mere playground for nobles and religious crusades ...
All this is true.
I have toyed with the idea of using drug-induced visions as a source of religious inspiration. Every time I think about it, though, I cringe at the thought of it being done in the manner I've typically seen: Hippies, watery eyes, marijuana euphemisms, and munchies. I have to admit that, from what I have see, the CoB on Dwilight has generally managed to avoid that kind of thing. Perhaps it is because it, so far, has had limited reach? Or perhaps the people involved have managed to set a particular tone and expectation that makes that kid of thing rare or non-existent.
... but a real social issue that can be used either to redeem a character or condemm them. So many of the roleplays and ideas never take into account the society in Dwilight and its environment. How we encroach on nature, how we hunt the monsters to exitinction , how we enslave populations and convert them by the sword.
The reason that this kind of stuff rarely gets explored, is because there are no consequences to any of these actions. We can't encroach on nature. We can't hunt monsters to extinction. We can't destroy the world. Our actions have literally no consequences to the game world as a whole. With no consequences to your actions, you can't have real controversy. You can't have social pressure and condemnation when the behavior being exhibited has no negative effects on the society.