well, people use pellet guns to hunt for one, and if you have a silencer, and you happen to miss your target, you won't go scaring off all the prey...

but i'm not getting the gun for hunting, i just like the way they look on a gun o.0 the fact i live in a close neighborhood coulda benifited from a silencer as well... so i wouldn't be bothering everyone... but meh... fuck 'em...