You might very well be right, in that those specific organizations likely have no hand in or knowledge of manipulating stock prices. (I wish I could go back to the original comment and tweak the wording to reflect this.)

But what do you think about others spreading the articles selectively to get more reach and thus influence what common shareholders do? That's a pretty easy way to achieve the exact same effect, and a lot harder to trace.

You can learn a lot by observing the gaps...