Posted this reply from snort.social and it doesn't seem to be showing up anywhere else -

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Copying and pasting with an extra paragraph at the end I thought of later:

The key thing about it that makes it communist in my view is the adherence to the principles of fairness, equality, making sure everyone has what they need, etc.

The key thing about capitalism that makes it capitalist in my view is people being obsessed with money.

The two aren't opposite ends of a spectrum as people treat them - the opposite of communism is allowing slave owners and the opposite of capitalism is having no currency at all. You could abolish currency and allow slave owners and have very-not-communism and very-not-capitalism at the same time. You could also have the system I described but with "profit" not existing and it all just being a matter of people wanting or not wanting to share needed goods and labor. In the system I described, social norms include both a capitalist way of doing trade and a communist way of handling the trade of food.

I believe the main reason communism and capitalism get compared as counterparts because they have names and the actual counterparts to them don't really have names. There probably is a word for a society without currency, but I don't know what it is.