SirBryghtside said:
We don't need protection of our freedom of speech, no one's trying to take it away.
Three things that prove your ridiculously sweeping final statement wrong - Martin Luther King and co., Amnesty International, and the Suffragettes/ists. To say that a single group who manage to DoS a couple of sites (all of their strategies have clearly worked, I can see the Church of Scientology crumbling!) and ruining a couple of people's lives is more important than these three is probably what the definition of insane should be changed to.
To you it may not seem like anyone's trying to take freedom of speech away (Though this is also debatable), to me it doesn't seem like we've ever really had freedom of speech to begin with. For me freedom of speech isn't about being able to say what you want without fear of incarceration, it's being able to say what you want without fear of moral backlash or social sanctions. It's breaking down the walls and boundaries civilization laid down for us within our own personal and collective minds, making thought and expression limitless. In anon's world, the only thoughts and ideas that are unaccepted are those that deny other ideas as an axiom of their being. No subject is taboo, and no form of self expression stifled.
Anon may not have led to massive immediate empirical changes in the real world yet, unlike the groups you mention, and yes, my phrasing was a bit exaggerated. But their mere existence, albeit digital, albeit fringe, helps spread true uninhibited freedom of thought and expression around, and to me that's a good thing.