I think the comment speaks for itself. There wasn't anything deep behind it. It literally just mean "Linux users look at BSD users how Windows users look at Linux." Bewildered, mystified maybe? It's just lower on the "food chain", and they are surprised to see people using it because it's missing "X" feature they can't live without, for many people that being gaming. I'm in the same camp.
It was not a comment on the quality of the software, as I have never used it. I would love to tinker with it one day to see the differences, but I can't see myself ever switching to it, even if I admire/envy some of the better parts compared to Linux.
So much for "real" free speech I guess. Like that was ever the real goal anyway.