I wonder how successful "Anonymous" will be? http://www.mirror.co.uk/news/techno.../charlie-hebdo-anonymous-declares-war-4949878
My fear in this case would be that they could impede the security services monitor the sites chatter for clues of probable targets. I am not against them disrupting the terrorists communications, I just don't want them to cause the idiots to go even deeper underground and more difficult to find..