Played Diablo 2 off and on for 10 years. ...and NONE of the content in Diablo 2 required the level of team coordination that a Destiny raid or nightfall srike takes. Not even the level of coordination need in Challenge of Elders or even some of Destiny's high level strikes. Human behavior is far too comple to be dumbed down in the way that you've done. Yes, you can INFLUENCE people's behavior in subtle ways by how you present a situation to them. But you will never control it ...and the irony is that---if you want people to behave in pro-social ways-----what Bungie is doing is one of the best ways to go about doing that.