And he is correct, but that still doesn't mean that wikileaks is an anarchist organisation. Remember we know nothing about the people that comprise wikileaks.
Even if Wikileaks doesn't have a stated agenda, the organization is run in a manner that's very consistent with anarchism. It's sort of amusing that 'an anarchist organization' can mean two things...
I don't think they'd ever admit to being one, there's too much stigma in the 'a word'.