Greetings, and thank you for the informed article. The only thing I have to point out is that DDoS (Distributed Denial of Service) attacks were used by Anonymous initially as that was how Anonymous has traditionally reacted to 'threats'. Anonymous stopped these attacks less than two days after they started due to a video by Mark Bunker, a long time scientology critic, and they have not been used since.
I thought I'd come here and post just to fill in your readers a bit more. I'm sorry if it's a bit TL;DR, but there's been a lot that has happened. I'll start by filling you guys in on how this started and who we are, then I encourage you to ask me any questions you have and I'll do my best to answer.
Actually, I recommend you watch this video, it saves me typing it all out (and a wall of text);
http://www.dailymotion.com/video/x4dcig_road-to-february-10-2008-final-vers_politics
Start Propaganda- 'We are a collection of individuals united by ideas. You likely know Anonymous, although you don't know exactly who we are. We are your brothers and sisters, your parents and children, your superiors and your underlings. We are the concerned citizens standing next to you. Anonymous is everywhere, yet nowhere. Our strength lies in our numbers. Our will as a whole is the combined will of individuals. Our greatest advantage is a knowledge of the fundamentals we share as human beings. This knowledge is a fruit of our anonymity.' -End propaganda.
Basically, we're people, that's all we are. We're individuals who have seen this, said "This isn't right" and we have decided to take a stand.
TL;DR,
We're protesting against the actions of the Church of Scientology, not scientologist, not their faith or their beliefs.
Like I said, if you have any questions please ask away.