"For the good of your followers, for the good of mankind--for the laughs--we shall expel you from the Internet and systematically dismantle the Church of Scientology in its present form. We acknowledge you as a serious opponent, and we are prepared for a long, long campaign. You will not prevail forever against the angry masses of the body politic. Your methods, hypocrisy, and the artlessness of your organization have sounded its death knell."
Here's what Wiki says about Scientology.
I don't know how serious the threat is from "Anonymous", but the mechanized voice may be an indication of how serious the hackers take the threat of Scientology.