Not being a communist myself, I recognize this as utter anticommunist propaganda not based on facts but on believes.
What is misleading about anything I've just stated? Because that is one of the requirements for something to be propaganda.
HN is a place for discussions. That means being open to people having ideas other than your own, and acknowledging that those ideas may have merit. You don't have to agree with them; I don't agree with everything said on HN. That said, you do have to be open to accepting that others have different viewpoints and that they're not crazy for doing so.
That's why there's policies in place for civil commenting, and the like. To foster a discussion between people with potentially opposing viewpoints without devolving into a personally-charged argument.