You are always at the mercy of your platform. But wikileaks could have continued accepting cash in the mail instead of being sidelined by a third party service. And at least with legal pot the tide is quickly shifting to make traditional banking easier; there was talk in LA about opening a municipal bank kinda for this purpose.

For most people, the utility of sticking your money into a volatile and slow system with no recourses is just never going to be there. A municipal credit union would be more useful and offer an out from private for-profit banking for most people.