THe loot system certainly was one of them. There should never have been Rare's coming from legendaries, and it should never have taken them this long to update it to fix that. I've had 7 legendary drops. 6 of them turned into Rare, and 1 of them was legendary.....but for a class I dont even use. All my armor comes from me buying them. You understand that a lot of people arent going to play months on end, but will only play for the first few weeks of the game's life if they arent happy. And then removing the loot cave, that people liked probably wasnt the best idea either.
The drop rate itself is/was fine. Its what came out of them that wasnt
Apparently the loot system is perfect and needs no changes, unless Bungie decides to change something, THEN its perfect and nothing is wrong with it (until the next change).
Also, you touch on another glaring flaw in the game. Why are we getting shit for other classes, if there is no way to gift/trade? I am not going to bother with this game long enough to level up a Hunter or Titan. So either just give me Warlock shit, or let me trade/gift. That's just one of the many social aspects this "social game" is missing.
I agree the drop rate was fine, but I never had a problem with RNG either. It was exciting to take 4-5 blues to the Cryptarc and have no idea if you're going to get a legendary. I can see why it would bother some people though. Now they are apparently adding more blue and purple drops to some of the strikes, that's great. Next they just need to fix the shard and energy issue, or allow us to grind for more marks to buy gear to break down into shards or energy.
And LOL @ someone saying fusion rifles/shotguns are skill weapons. Those are the 2 easiest weapons to use in PVP.