There should be a public in game leaderboard that recognizes players accomplishments. It would be an in game hologram of a player(s) that everyone can see and access to see where they stand. There should be a few of these for different achievements like Raids or PVP and can also be a real time cast of what people are doing around Destiny. Let's say there's a badass clan out there kicking ass and taking names in multiplayer. They will be top on the leaderboards but also have a physical (in game) representation with the hologram. It can also be used to recognize players during community events and so much more.