Anonymous might have some means and methods I don't agree with, but the US Army/military/intelligence outfits do also. I guess the people "protesting" about Anonymous' actions don't have any sense of history, or the history of the Internet (which I do, having been a netizen for over 25 years now, pre-web and etc).
They do not seem to understand the actions of Anon in revealing how carelessly handled our personal data is; how it is made the problem of the consumer when a bank's or company's abyssmal, stupid and technically-lazy "security" is shown to be little better than a PR gimmick; when banks and corporations will sell my data to each other or anyone else with 25$ to spend, not checking my references (try it yourself).
Perhaps Anon is not ignorant of the network as a communications platform and refuses to buy into the media corporation's attempts to reduce the net to a mere broadcast-only, one-way push medium for advertisers. Perhaps they are well-read in the history of the printing press and the attempts to suborn, contain and eliminate a free press movement. Perhaps they actually understand the Constitution and the Bill of Rights and how they apply to online communication.
Perhaps Anon is tired of trying to "work through the System" when such efforts are pretty much a joke now because "The System" is thoroughly suborned, when you can buy a Congresscritter or lobbyist through "campain contributions" you don't have to report. Perhaps Anon understands the noble history of protesting the invading forces of oppression and censorship.
It isn't Anonymous who's hacking your little kiddie Facebook profile. It's Anonymous who is showing you that corporation's lip-service to "security" is so much hot air and that corporations, far from caring about security, are part of the problem of data security, wholesale inside job breaches, internal theft and leak and ridiculous "security measures."
Maybe the people protesting about Anonymous should do a little historical reading and comprehension, both about the history of the internet as a whole, and the thoughts of the men who made it (Tim Berners-Lee, Vint Cerf, John Perry Barlow and etc). Then perhaps I will listen to them, but not when someone's "opinion" is just that; an empty opinion without any basis to form it expect "I think this is what it is." That's not an opinion; that's an asertion with nothing to base it on; ie, it's meaningless noise.
Miso Susanowa