Take HN commenters' infosec analysis with a large grain of salt. Their assumption is that everyone is a script kiddie, especially Anonymous. Even if there is a call for a DDOS, infiltration and gained access could likely precede or follow as a supplement to the attack.

Let us not forget that DOS attacks present potential for man-in-the-middle attacks. Its a perfect cover for their real hacking teams to infiltrate and gather further intelligence.