I mean he just tweets about bitcoin so often. He may be thinking that he is guiding his followers out of bitcoin but what he could be doing is making them more curious that they will eventually buy like his son did. Bad publicity is still publicity eh?
The parody of his tweets is that he is always tweeting about BTCitcoin even though it is negative and in the tweet you posted he is complaining about CNBC giving excessive coverage about BTCitcoin 
. The only thing you can see is that when there is a major correction in BTCitcoin people like Peter Schiff will shit over the market and will say i said so it is just a tulip pump 
. I liked some of his old predictions about the economic collapse and it had substance and there might be some truth about BTCitcoin and its valuation as you cannot expect the price to always go higher and you need a major correction once in a while and that is how the market sustains.