We've thus ended up in an era in which very few people will defend communism, understood as the central planning of the entire economy. To me that is not surprising. I reject it too. Thinking that an entire economy can be planned from above, including who needs which consumer goods, who will do what kind of work, where to buy groceries and at what prices, and so on, seems an incredible act of hubris. And it is not difficult to see that, on a national scale, such a massive planning exercise could only be done in a non-democratic system, since many people would prefer to be entrepreneurial.
The claim that limitarianism is essentially communism -- defined in this manner -- is at once hilarious and deeply sad. It is hilarious because you really don't need an economics degree to see that there is no need for USSR style communism if we want to live in a world without extreme wealth concentration. The claim entails a confusion of categories: communism is an economic system with political implications, whereas limitarianism is a moral principle that should, first of all, guide the design of our economic end social institutions, and, secondly, our own personal decision-making.