Hacker News is one of the most communist leaning forums online, while at the same time strongly supportive of US government policy. How those two go together you'll have to ask somebody else. Any thread you read will have "regulation and government nationalization" as the answer. It's the modern day equivalent of "God will fix it"
HN is one of the most pro-capitalist forums ever. Literally created by venture capitalists to promote capitalism and further capitalists' aims. I visit this site because sometimes Reddit is too much of a progressive echo-chamber.
> Since I have you, what do you consider communism?
To start with, nationalizing mass media and the press.
> Literally created by venture capitalists to promote capitalism and further capitalists' aims.
Capitalism and communism go hand in hand. If you don't believe me, read the communistic manifesto. Marx writes again and again that they need capitalism first before they can introduce communism. The ideologies are not each other's opposite.