I'd say it starts with the content. Some content is clearly going to cause conflict, and you've got stuff in place to catch some of it. More severe curating of

I'd say it starts with the content. Some content is clearly going to cause conflict, and you've got stuff in place to catch some of it. More severe curating of content will help reduce this further. Then there's the actual human interaction. We suck at communicating; adding tools to improve communication would help the discussions stay calmer. Finally, there's the in-group mentality where people who perceive themselves as the same will act nicer to each other and perceive threats less often. By increasing the ways people can relate to each other, their empathy toward each other increases, communication becomes more friendly, and people try to work together more often. Big Brother's approach was to attack all three of these areas rather than just create laws and police. It seems that utopian societies are a bit like gardens; if you want them to look really pretty, you'll have to do a lot of pruning.