The problem with your theory is that Bitcoin is a very limited supply. You can't cover short positions if nobody is willing to sell. It isn't like gold or silver, where we don't really know exactly how much is out there. With Bitcoin, we know how much is out there and if you enter into a contract to provide me with 25 million Bitcoins you are in very big trouble when it comes time to settle the account. You will be in breach and you will be forced to make good on the contract, which would be impossible to fill. Your liability is infinite.
You and a lot of other unsuspecting people are going to lose everything. Not just your initial investment like on the numerous Bitcoin futures trading sites. There, you invest $10k and short the market and it goes to infinity, you get stopped out and just lose your investment.
In the real world, where the big dawgs play, they don't let you out of the market. When you get a margin call on your $10k investment that says you need to bring in another $5k buy the close of the business day tomorrow, you either bring it in, or they liquidate your account. If it is lock limit up and they can't liquidate your account, they come after you house, your car, all your assets, even your clothing, you will lose everything.
There is nothing wrong with shorting Bitcoin, most of my trading is shorting Bitcoin. However, it is on exchanges where I know I am limited to losing only my original investment. And usually the only reason I short Bitcoin is because after a huge run up, I don't want to sell, but I always want to keep my gains. With the leverage I get, I only have to invest a small amount to protect my gains. If I am wrong and the market goes against my short position, no problem because my Bitcoins are going up in value and I lose my short position.
If you don't understand these concepts, you might want to hold off before jumping in there with Billion dollar hedge funds, because they will clean your clock like you have never before imagined.