Is there even a need for this when existing technological measures work? There's alternate DNS servers, VPN services, TOR bridges, obfsproxy, and shadowsocks. I've even heard that you could get pass the gfw by using a roaming sim card from hong kong.
You're obviously right when it comes to Turkey, or at least their past efforts to block, which were somewhat half-hearted.
But there are now countries that are willing to shut down the internet completely, at least for short terms. Cashmere still has no internet if I'm not mistaken, and Iran also had several shutdowns of about a week each in the past months.
Unfortunately, the track record of technology isn't that great when it comes to technology. A functioning court system, independent press, and strong civil society are far more useful than tor, encryption, bitcoin, or any other attempt in that direction.
These solutions take technical know-how to implement. And often times instructional sites, VPNs, and such solutions are also blocked because they help people engage in "cyber-crime."
So the censorship is effective for >99% of the population, and if you've got one friend that knows how to get around the censorship and starts blabbing about coverups going on in your country, then they sound a lot like a nutjob. And there are also the people that just don't care about the censorship as long as their daily life isn't directly affected.
