I stopped using Thorn because, after a Hiatus, I was significantly better with other weapons. Like The Red Hand IX. Don't know why. Shit, I perform better than my Crucible buddies when I'm not using any Exotics, and they're decked out. Besides, Thorn is little more than an annoyance. Hawkmoon, TLW, even the Messenger are more annoying to deal with.