This is generally wrong, though. Communist countries have dramatically democratized society, it works better at large scale if we are speaking of Marxian Communism because that's the Marxist reason for Communism to begin with. Competition centralizes, so in the future it must be publicly owned and planned. This is the basis of Scientific Socialism, primitive Communism is not the same as the post-Socialist Communism, which must be large-scale as production increases in complexity.
This is generally wrong, though. Communist countries have dramatically democratized society, it works better at large scale if we are speaking of Marxian Communism because that's the Marxist reason for Communism to begin with. Competition centralizes, so in the future it must be publicly owned and planned. This is the basis of Scientific Socialism, primitive Communism is not the same as the post-Socialist Communism, which must be large-scale as production increases in complexity.
Pol Pot wasn't even a Communist.
Tribal societies existed without classes or trade, they largely pooled together resources.
Primitive Communism isn't something to emulate, but a historical formation of society.
Some did, others didn't. Calling primitive communism "primitive communism" is a judgement on its class character, not a moral one.