I was banned for saying Cuba was communist with no value judgment of either the nation or the political system. AFAIK they are the only truly communist nation remaining.

Emphasis mine. That is not how it looks like in the original context:

[OP] If the US stayed out of other countries politics and there were no coups or installation of people favorable to the US what would the world look like?

[You, removed as “rule 1”] Those countries would have been taken over by communist regimes due to support from hostile nations… So like Cuba but all over the place.

You’re clearly casting a value judgment over the Cuban political system, and defending US intervention in other countries.

With that out of the way, it’s yet another case of rule #1 (no bigotry) being used to prevent people from criticising the admins’ views, because they can’t be arsed to list in the rules “5. Don’t criticise our political views here.”

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Side note. I do not want to engage on the discussion of capitalism/socialism/communism here, as it falls outside the scope of this community. However:

• Communists distinguish between “socialism” and “communism”, as two sequential economic systems. Cuba’s regime is socialist, not communist. Since this conflation shows that you aren’t communist, it further reinforces reading your comment as casting a negative judgement over the Cuban regime.
• What you’re calling “nation” there is “country”. For Cuba it doesn’t make much of a difference, but for other countries it does.