I don't have Thorn, but I've died enough to it and I think that it is fair. You have to go through quite a lot of work for it, and it should be powerful. All exotics should be powerful. I think that once we stop asking for nerfs, we will pay attention to other issues. For example, on yesterday's patch there were no nerfs, but they fixed issues like Treasure Keys, which actually needed fixing. This isn't a "git gud scrub" post, I am just saying that once every other problem is fixed, we can focus on balancing.