For all the people asking about the context :
By free the writer wants to convey that the market is not governed by any centralized body , it is more or so decentralized like Bitcoins
But that's no longer the case
At least, in important jurisdictions (US, EU, Japan, China, etc) cryptocurrency markets are already regulated, i.e. there is a governing body that monitors and controls these markets. On the other hand, where there are completely unregulated markets (read, where Bitcoin is not considered an asset or property), this leads to scams and fraud. I'm not sure if any sane person would vote for that as it severely damages Bitcoin