Obviously when you want to try to find his identity you should just keep this information as part of the puzzle which can be helpful and may or may not be true. But I don't think it matters much anyway, I highly doubt anyone can find his identity and I highly doubt that authorities are gonna care. Still obtaining as much information as possible should be good, right?
I would agree that the authorities probably won't give a rip, and even if we did know who he was, aside from filing a law suit there isn't much that will happen.
Well, there are other means of punishment if we know who it is.....
Its that simple as perforating the tires of his car etc.....