Many times they've claimed to have important data on a government, business, about a topic.... and done nothing / never mentioned it again. And that's just going by their own tweets.

What is going on in the background I have no idea, but just based on their own efforts to hype data they claimed to have and never release it made me question what they really valued.

Now a real journalist might have information they never release because they aren't sure if it is legit or sometimes even a government asks them to wait (kind a controversial there) but I don't see them claim to have solid evidence and then just not do anything with it. If I take Wikileaks at their word about their information, then I also have to wonder why they chose not to release information that they claimed to have / would release.... And that doesn't account for things like tipping off various politicians ahead of actual releases and etc.