How many times has it happen when you get the lucky legendary engram after hours of grinding or crucible then head to the cryptarch and get a engram that is for another class? One major issue people are addressing is the fact that Destiny is an MMORPG that is missing a needed element of trading. Friends who get legendary or exotic armor for separate classes are negated from trading between each other. I am a level 26 Titan with a level 24 Hunter in which we both have something we want. He has legendary leggings for a titan and i have legendary leggings for a Hunter. But we cannot trade with crucible marks, vanguard marks, items, and materials. If Bungie fails to address the people who play those extremely painful, difficult, un-frinkin believable nightfall strikes who get that exotic item for the wrong class. C'mon Bungie LETS TRADE! Here is a video of a comparison between borderlands and destiny on trading items between players.