> information about and software for circumventing the Chinese government's internet censorship systems -- which, among many other things, blocks access to, eg, Google, and The New York Times.
The actual impact of the attack was to have thousands of news outlets and discussion forum sites mention and link to the github repos that offer circumvention.
Further, by attacking Github, it's guaranteed that many of the most tech-savvy Chinese internet users will have the existance of the forbidden repos launched into their consciousness.
Of course the Chinese government knows this and was likely not responsible for the attack.
The attack would not be possible to commit by the actual perpetrator if there weren't such a knee-jerk bias against the Chinese government's internet censorship.
Let it also be noted that the US Government censors lots of information too, both through so-called "official secrets" requiring security clearance granted by party members, and via laws that crack down on things deemed morally wrong, as well as illicit drugs.