Shadow, I like this thinking. Because I've thought of this pretty deeply, I've also noticed something: you said that the Bad Juju isn't a WoS. I think it is, and here's why. The Bad Juju was created just like the Thorn was, out of a Guardian going insane after thinking about Hive magic and sorcery. Notice its description. The way that it acts fits the weapon perfectly. Its signature upgrade is String of Curses, which refills the magazine after each kill. Now, String if Curses sounds like something that would belong to the Hive. Just like the description, the weapon probably does want to murder. Also, notice the matter coming out of the barrel. It looks rather dark. Even the body of the weapon has the skeleton of that of which looks like a dead vulture. Vultures like to feed on the dead, but the weapon's body made it look like that it feeds on what feeds on the dead. BTW, Crota's End weapons could be weapons of sorrow, but they all have Hive bones and don't have any special effect on other enemies, only to Hive. The Thorn, Necrochasm, and Bad Juju do. Thorn rounds deal damage over time, like draining life from something. Necrochasm rounds will cause Cursed Thrall explosions after a precision kill, similar to not only taking the body of something, but the soul as well. And the Bad Juju's rounds continually refill after each kill, much like something killing something else, bringing their parts back to the source (in this case, helping charge your Super), and then going back out, continuing the cycle until it has everything it wants (in this case, again, filling your Super meter).