Actually, we went hunting, and shared the food, land owners were eaten, until one said, I know where there is more..
If you eat the landowners then I think that's classed as poaching, not hunting
On topic, I think a moneyless society can work on a small scale (think hippy communes etc.), but human nature seems to corrupt any money system if any individual group has too much power over it, which history has shown seems to happen when any money system/economy gets too big. eg Soviet "communism" which ended up as more of an unfair dictatorship, and the current crony-capitalism that we're living in now.
Currency is a
brilliant idea, but human nature seems to corrupt any centrally controlled money system, hopefully Bitcoin can evolve to be a fairer system. Of course there will always be a wealth gap, but at least there won't be any authoritarian puppet masters at the top cheating the system for their own gains.