If it's a bubble you can make money buying BitUSD within BTSX. There is no reason to dump to fiat if everything works because you'll make less money doing it that way.
Anyone who dumps to BitUSD please make a Youtube video or visual guide showing others how to profitably reduce their exposure to BTSX volatility. Going into ordinary fiat is not as profitable as going into BitUSD because eventually BitUSD will offer 5% interest on your fiat.
It already is bubble territory in the sense that there are no healthy pull backs. Everyone is buying truckloads, until we run out of buyers. Then it will suddenly drop and then recover. Just like the stock market it could go up up up for years. Remember the price takes the stairs up and the elevator down.
When it becomes obvious that the market has run out of buyers everyone is going to rush into BitUSD to cash out. The less aware will cash out onto an exchange like Bter, pay the fees, and not get any of the benefits of holding BitUSD on Bitshares X.