What if you felt the news was going to be positive?

What if you had a few hundred thousand shares you bought at $0.65?

What if you wanted more so you dumped a couple hundred thousand as a sell at "market"? What if that caused all of the "bids" to be taken out all the way down to the volume of your sell?

What if you started buying at that point to the tune of a couple million shares? Nice profit taking on the way down and nice averaging on the way back up.

What if someone else had the same idea after they saw you get away with it?