As an anarchist, I'd say bitcoin is not capitalism. Bitcoin is simply a means of exchange. Capitalism is a historical and complex structure that involves extremely powerful actors (corporations, billionaires, the state and its military) -- destroying democracy and ruining the lives of regular people. By contrast, Bitcoin is peanuts =)
That said, most of the people on this forum are pro-capitalism and there is a disproportionate number of right-wing libertarians. In my view, neither of these groups should use riseup.net
The recent victories of bitcoin in the ongoing Darwinian contest between media of exchange is capitalism in action.
As a right-wing libertarian, I'd say that you are confusing capitalism (which is an abstract ontological/philosophical/economic theory) with History (ie what happened in The Past) and Statism (which distorts free markets with coercive interference).
Blaming a concept for actual events doesn't seem productive to me. It's like blaming the laws of physics for starting a war and killing people. Sure, a chemical reaction was the proximate cause of the deadly gunfire but the ultimate cause lies with individual Kings, Popes, and Bankers.
I'm going to use riseup.net, just to provoke a hierarchical, dominating response from the supposedly live-and-let-live sysops.
But isn't it nice how bitcoin provides economic interoperability between the various tribes of individualists, regardless of particular ideology?