Except DDOS attacks are harmless. There is no destruction of anything going on. This is no different than getting a crowd to prevent people from entering a store.Ken Sapp said:Performing a DDoS attack is a way to cause damage to private property and just as the First Amendment does not give protestors the right to intrude on or destroy private property it also wouldn't allow an electronic form of destruction. If they want to protest they are more than welcome to build their own websites to spread their message as well as using forums, Twitter, Facebook, and other social media.
Now granted, it's much easier to ddos than to block people from entering a store.