On HN I have seen people whining about their "innocent conservative viewpoints" being censored, but it turned out those viewpoints were that black people were intellectually inferior based on studies of IQ.

Like your counter-example elsewhere is that Facebook is a fine technology that helped your good friend find a partner. If we attribute that to Facebook, do we not also have to attribute, e.g., Myanmar? Don't situations like that prove that not only are people incapable of recognizing bad information, but also that these tools can exacerbate the effects when they are misused?