Which ones? I know a lot of them and they really don't like it.
IME left wing market anarchists that are moderate enough to allow an exploitative hierarchy like bitcoin are also moderate enough to allow fiat currencies that are more democratic, and those that are radical enough also won't like bitcoin's hierarchy.
Ah yes, I know about c4ss. They are a major force in left market anarchists in the anglophone world, but looking through their website a lot of of Bitcoin content is written by agorists.
C4SS style anarchists and agorists are definitely on the economic right of even free market anarchists (mainly mutualists, decentral planners that admit a free market, etc, anarcho-syndicalists, mixed-economy libsocs, Bakuninists, etc...) in that they consider the state a far greater issue than capitalism. Most anarchists that like markets (which is most of them in some way) see capitalism as an equal or greater threat than the State as at least the State may share some power with the people in some cases.
