Communism is a trap for the simple minded idealists who are disillusioned with capitalism. In theory, it could be a utopia. However, it takes a few basic assumptions in order to work. The biggest one is that everyone participating in the system truly believes in it and no one tries to take advantage of it for personal gain. But it's far too easy for someone or a small group of people to seize power and then keep everyone else powerless to do anything about it. This has been the cause of the failure of all communist governments that I'm aware of.

On a smaller scale, communism works extremely well though. For example, in gaming guilds. Sharing resources, allowing everyone to specialize where they want without suffering from diversifying their skills or dumping play time into other areas can help everyone to advance more quickly. I put this into practice in ff14 with great success. Raid tiers release every 6 months when they also release new crafted gear which is the best for raid progression, but requires some new ingredients which are time locked but tradeable. So our raiders would contribute their ingredients to crafters and they would provide them with gear, and food. The arrangement required the raiders to continue contributing ingredients for 3 months which were evenly distributed among crafters, and they would then make items and profit from them. They would return 10% of profit (not revenue) to the guild bank which funded all kinds of things. Everyone got what they wanted.