Unlike you and I, not everyone has the experience or insight to trade in crypto currencies. As we know, the market can turn on a dime and a profit can change to a great loss within minutes and the fluctuations have impacted on many who thought that they will make money.
It is a 24 hour environment and nothing like the 6 hours of the ASX. People have lost vast amounts within 24 hours. At least the asx has a set period of time.
Also, those that make money on Crypto must pay the tax man. This includes all daily buy / sell and cross fiat exchanges. Those that think that they can dodge paying tax had better think otherwise. The ATO is actively watching this space.