According to me, people change their statement through the different situation and here the #BillGates have done the same thing and if he is talking about the misuse of crypto currency then let me say one thing else and that is people are also purchasing drugs through the tangible currency then what would he say for that,
I just can say lol!

and in the last but not least and that is crypto currency is not to blame..

thanks for sharing the statement of richest person's amazing thoughts @ rok-sivante