Because at this point, large chunks the press are more interested in smear campaigns against Wikileaks than accurate reporting. For example, remember all those breathless headlines about how Wikileaks recklessly leaked the personal information of every woman in Turkey, and how they were putting domestic violence victims in danger through their arrogance? They didn't, a security researcher called Michael Best did; they just took him at his word and tweeted a link to his blog post. The press went on to exonerate the actual reckless leaker of all responsibility whilst continuing to attack Wikileaks for it because no-one really cared about those domestic violence victims except as a way of attacking Wikileaks.