I think it would add some more depth and a new aspect to the gameplay and some fun harmless competition if there was a leaderboards hologram or something with people's IGNs and the fastest time the dungeon or gauntlet was completed. I'm not sure how you would count this - counting the whole time you're in the dungeon seems a bit wack and hard to track, so maybe it just times how fast the end boss was c ompleted, or in the case a dungeon or gauntlet has multiple bosses, each of them can be tracked and the ranking would just be inside the dungeon right before the boss' entry.