This seems rather concerning. I am by no means an expert on banking or finance, but would this not create massive risk of contagion should the price of Bitcoin

This seems rather concerning. I am by no means an expert on banking or finance, but would this not create massive risk of contagion should the price of Bitcoin collapses? I am all for people being able to experiment and bet their own money on cryptocurrencies, but I do not think that it is right for the general public to be exposed to this kind of risk.