Seems like you're reaching a bit. Seems pretty circumstantial.
Or High Plains Drifter, or any other of the countless other films with hangings, or even neck scars in them. :D Like the Barbarian Brothers (ha, Kenneth)
Hold up there, cowboy. No One but QT knows what is and what isn't an intentional reference/homage. So we shouldn't say any of this is FACT until we hear it from the man himself.