Government transparency is a distinct issue. What I was speaking to is the low barrier to opening a blog under a pseudonym, posting something and sharing it without any long-term disincentive to be accurate or truthful.
Wikileaks is not the end-all, it is a stepping stone. Extremely damaging or valuable secrets or only known to a very limited group, so anonymous information isn't really anonymous in that sense. Wikileaks is just another gatekeeper, it isn't a distribution network. Assange and his brand have an audience, but that's all it is when you break it down critically.