A lot of people in tge US don't really understand the political views they are espousing, or the histories surrounding those politics, nor do most americans have even the slightest understanding of the political process within their own country. You can forget about the vast majority of US commenters (even here on hacker news) having any knowledge of socialist/communist theory. I'd imagine that the initial commenter is actually unaware of left/right positions or their implications.
(I could be quite wrong, but this seems to be the only sensible explanation for the GP)
