Nothing stops anyone claiming to have a copyright to send a notice for any IP. Frankly, if I don't like your haircut, and know your IP, I can send a notice to

Nothing stops anyone claiming to have a copyright to send a notice for any IP. Frankly, if I don't like your haircut, and know your IP, I can send a notice to your ISP claiming that you "infringe on my intellectual property." Without judicial oversight, the potential for abuse or error is just too great.