For me am considering such statement as a way of passing a negative information about Bitcoin, let the clarity be made as Bitcoin investment is not as the same as other investments and I also feel that Bitcoin is not as risky as most people proclaims or claims it to be, one of the reasons why it is always advisable to invest only the money that you can afford to lose, money that you can do without and that is where the idea of making use of your discretional or disposable income comes in, because it is assumed that you must have taken care of your personal needs and emergency funds inclusive and have nothing much to worry about with the hope of a future return. For me, that is the concepts I have when considering Bitcoin as an investment, but I don't know about you.