Anonymous is overrated. They say they are legion - I doubt there are more than a few hundred who can actually do anything of any substance. There have been plenty of "anonymous" gangs and groups throughout history. Every single resistance group has claimed that they are invisible, anonymous, omnipresent and invincible. They never are.
Given that there are hundreds of thousands of people who work in law-enforcement, anonymous will never outnumber them. And even if they do, they don't outnumber the majority of society who despise them. Go ahead, try to take down face book - we'll see how much public love that earns you.
They are making the exact same mistake that "revolutionary" groups have made throughout time - they are mistaking themselves FOR the people. They are not "The People" - they are PEOPLE, but they do not represent "THE PEOPLE". Like it or not, people like Facebook. Personally, I don't like Facebook, I've never used Facebook, and I never will use Facebook, but others do - and don't people have a right to use Facebook?
Why should Anonymous dictate who can use the internet? Or what sites should be there? Some Libertarians they are! So much for their cries of "Freedom!" With this, they've exposed themsevles: as nothing more than crybabies who want to shut down whatever they dislike. They are no less controlling or demanding or intrusive than the governments they claim to hate. They're hypocrites, plain and simple.
But please - don't overestimate what Anonymous can do. A good number of them have been arrested already. Of course they say they are part of a vast, huge network of millions, but then again that's precisely what they want you to think. I would be very surprised if there were more than 100 core Anonymous members or hacktivists.
You'll see. 2, 3 years from now, they'll be gone.