The only way to keep players from doing something stupid is to Just Keep Talking.
Sadly, there is no way to keep the DM from doing something stupid, although offing one of his favorite NPCs might shut him up for a couple of minutes.
Bethesda felt the need to jam a morality system into Fallout 3, and they blew it. Good and evil make no sense and the moral compass points sideways.
How to Forum
Dear people of the internet: Please stop doing these horrible idiotic things when you talk to each other.
Juvenile and Proud
Yes, this game is loud, crude, childish, and stupid. But it it knows what it wants to be and nails it. And that's admirable.
A programming project where I set out to make a gigantic and complex world from simple data.
Batman v. Superman Wasn't All Bad
It's not a good movie, but it was made with good intentions and if you look closely you can find a few interesting ideas.