It's a real currency market, it's just at the Bonnie and Clyde stage of its evolution. Consider how lax bank security was in the 1930s that a single couple could rob banks for years with a fraction of the sophistication of modern day bank robbers.

You couldn't get away with it today, not for that long, but it was possible with "real" money, "real" banks, all government backed, at one time. And that had centralization and identity built into it. The bitcoin community isn't big enough to have serious security professionals yet, but that doesn't disqualify it as a currency market.