It makes complete sense, but there are something strange in this line of though.

First: who is it that is manipulating information? Don't you think there's too many players to reach a consensus on when, where and how to perpetrate those actions? (e.g. some major group could be attempting a pump & dump, while other major group just got out of one and would operate on the opposite manner...)

Second: if there's such an information conspiracy, how could we, bitcoin lovers and supporters, counter-attack?