Random thought...
Bob might be working his ass off to improve bitcoin, which in turn raises the price of bitcoin. But Joe sits back and enjoys the fruits of Bob's labor by simple holding on to a bunch of bitcoins he did almost no work to acquire.
If Bob minds his own business, then we don't really have a problem. But if Bob wants to maximize his returns for the work he puts in...
...then he can buy bitcoin, sit back and relax, just as Joe did. This further increases the price, stabilizes the market, and gives more incentive for others to improve bitcoin.
In communism, property is publicly owned and controlled. In bitcoin land, private parties own and hold bitcoin. Those private parties chose when to buy, and when to sell. If bitcoin was communism, then there would be some type of central entity - call it a "central bank" which controls the supply of the money and distributes it to those who need it most, from those who produce. So I'd chime in about now that our current Federal Reserve system is more communist than BTC can ever be.