And that is the problem with communism: in a society with any scarcity, human nature will take over. Even in a small society with very strong moral leadership and social and philosophical unity, it is a challenge[1]. I do wonder what would have happened to Orderville if Congress would have left the early Utah pioneers alone.
That is a big problem with communism, but there's one even greater: the calculation problem.
Without property, there is no trade. Without trade, there are no prices. Without prices, it is impossible to know how to efficiently allocate resources.
[1] http://historytogo.utah.gov/utah_chapters/pioneers_and_cowbo...