Well, Anonymous isn't a "guild", if you would, of people, it's a loose grouping of like minded individuals and these guys might do something and not have the connections to the media that this other group has.
Now this is quite hilarious. Anonymous strikes again! Over one gigabyte of secure data belonging to Vanguard Defense Industries released to the general public. I'd place this under the "Freedom of Information Act" right?
They are Legion.
They do not forgive.
They do not forget.