The thing is, Chael really is just baiting Silva. There are many interviews out there where he gives Anderson all the respect in the world for his accomplishments and place in the sport, and admits that he wasn't able to get the job done against the better man that night. Chael is doing what he has to do right now to get people talking. And when the numbers come in for the rematch, you'll understand, yet again, why he goes all out to sell a fight.
Bottom line... in reality, Chael Sonnen knows who and what Anderson Silva is.