Lets just hope that the greed of the human race, from people who couldn't give a rats ass about its true "intention", don't end up watering it down into a regulated system that is barely indecipherable from other forms of currency.  I think that may be the biggest risk to Bitcoin.  Humans. 

Source: http://www.coindesk.com/commonwealth-bank-closes-coinjars-business-and-founders-personal-accounts/