As someone has already written, if the OP is so influential in moving the market then in the direction he wants, he would make a bunch of money and not sell fairy tales on the forum.
Before you comment, I suggest you read :
I'm open for sponsorship. You can only pay when you are profitable
My Signature on Bitcoin price
Well, the price dropped during that day when it aired, that should be clear indication that people are just using him and nothing more. I have to say that the best thing about this massive market that one person can't decide anything. And someone who is on a forum with a signature? Lol, that is impossible if anyone thinks like that.