Well, gotta say I'm getting frustrated seeing everyone get cool loot and I get shit.  Never really bothered me as much in other mmos, but in this game it posses me off seeing friends get stuff I want that they don't use and just dismantle or vault never to be used. Same friends that already got everything they want. I got the same junk sniper rifle which I don't need from nightfalls twice not including getting two other snipers the other times.  There should be a smart loot system that gives you what you use or at least significantly better odds of getting said items.  I shouldn't have to hope Xur sells something good.  I shouldn't get nothing but mats from a raid all the time while others get sweet exotics.  Share the wealth, throw me a bone at least once in a damn while. 
Xur doesn't sell something I want for once, or I don't get shit from raids this week, I'm out.
I played mmos for a long time, but this game just pisses me off for some reason far more than any other mmo or loot game.