There are rules. People who respect the law don't care they are not driving anonymous. Of course, the driver, who breaks a speed limit, damns the inventor of the license plate, when the policeman is writing his fine. But the existence of the licence plate is much more annoying for criminals than if it wouldn't exist. As the internet grew, no organization has been set up to control adequately the net.
Nobody has a real authority about the internet's life.
This made it possible that all kind of people can behave like they really are. No rules, no control, only the unlimited freedom. It is the image of a society growing without rules, without a direct confrontation with other people or their judgment and without controls and punishments. On the internet we would be able to observe and judge the true nature of people. Internet will be the proof that we can't use it.