You're an idiot if you think that shit is true. They have established terms of service as well as end-user agreements.
This is the same as the US Constitution. You can do whatever you want, however as soon as you infringe upon someone else's rights or property, then it is deemed illegal or unconstitutional. In the video game world, one's rights includes fun. If you take their fun away by hacking, it is the games responsibility to uphold their rights as a user and lay the banhammer down hard on your stupid ass