I think the advanced users of HN vastly over-estimate the common sense level of the general public.
http://qz.com/333313/milliions-of-facebook-users-have-no-ide...
http://qz.com/333313/milliions-of-facebook-users-have-no-ide...
Frankly I don't care for the matter at hand about the perception and understanding of the Internet that people from a different culture might have just as I do not care about the Saudi perspective on women's and LGBT rights. We are discussing here what should be the standard in our societies.