DMs of Reddit, what have you banned or restricted and felt completely justified in doing so?

Good campaigns are banned. Justified in doing so because good campaigns are boring.

When I first started D&D it was always good campaigns and they were fun. Eventually we dipped our toes into evil and all of our most memorable campaigns were evil campaigns. Heroes doing good things is okay once in a while but it's just so overused. Almost all movies and games involve heroes or good guys, our group is just kind of over it.

The difference between good and evil campaigns is what you do on the path of that delivery. The creative freedom and flavor available with evil characters is off the charts. It's just more fun.

In 10 years of evil campaigns I've only had issues twice. The first could have happened in some good campaigns (think of Worf assaulting someone because his honor was being attacked). The 2nd learned to think more about the party, regardless of what his character may be inclined to do. Both instances were new players.

We're not getting together to play D&D, we're getting together to have fun as friends and D&D just happens to be the flavor of fun. We all understand that and aren't looking to screw each other over, and I think that's one of the larger barriers for randoms and new players in evil campaigns.

My most memorable good campaign was one where the party was in search of legendary artifacts. Greedy characters lead to fun games.

/r/dndnext Thread