It's not about communism. People can exit under the current system. The delays in place are a strong protection for active participants in the system. People who just want to speculate can hold their funds in an unpowered state, probably on an exchange, where their safety (or lack thereof) is determined by the exchange anyways. But active voters (powered up participants) are responsible for their own funds, and the powerdown delay has saved many people from losing all their funds.