The problem with full communism is the same as full libertarianism; it fails miserably to account for human behavior. In both cases, advocates will tell you "well that doesn't count, they didn't do it right!"

> You are writing your nonsense on a free-market created computer, publish on a free-market created website over a free-market created network.

Yeah, no. The government and publicly-funded universities invented the internet (https://en.wikipedia.org/wiki/ARPANET / https://en.wikipedia.org/wiki/Internet#History) and publicly funded CERN invented HTML and the Web.