It was a broken gun. I remember when I first got it I actually thought that it would take ammo from my inventory, since I got it from my first Crota run as soon as TDB released and knew nothing about it, and I was content with that. I upgrade it to White Nail, take it to Devils Lair, get to the Walker, and soon realize it was free ammo. I then proceeded to destroy the Walker in a very short time and then stunlock Sepiks to death in about 1 minute. Nobody likes a nerf, plain and simple. Nobody likes seeing things they have or want being downgraded, because they may not want it now. You can try to justify it all you want, but the Black Hammer was set above every sniper in the game in PvE, and Bungies goal is for a balanced game with variety. PvP people like to complain about things since any gun advantage in PvP can become a major issue, like Thorn, but in PvE, nobody really cares because it's an AI and no real person is getting the bad end of it. I use Black Hammer almost exclusively in PvE events, such as VoG, CE, and PoE because it is so much better than any other sniper against bosses, the hardest enemies you're facing. I hate to see it go, but I understand why it has to.