The problem is that people think that they are millionaires because the LAST Bitcoin was deal was apparently valued at $18,000 or whatever. Remember people are not handling over $18,000 or whatever at a time. People are buying a few hundred dollars worth at a time, many people, it is true. This does not mean that every coin possesses this value. The majority of holders do not trade. The danger comes when people try to cash out in an uncertain market. And the market for Bitcoin is very uncertain. The crash and burn is inevitable, particularly given the delays inherent in the blockchain.