I would think HNers of all people would understand the idea of abstraction and information hiding. We have so many parts of our lives that to try to get a complete understanding of even one of them is pretty complicated.

What's the best toothpaste to buy if I want white teeth? Will it hurt my enamel? What about gingivitis? What about tooth brush hardness? What about flossing? What's the proper technique? Should I do it before or after I brush?

And that's just dental hygiene.

So yes, while this libertarian ideal of "the free market solves everything" and "fuck the consumer if they won't educate themselves" is nice in theory, in practice it's not effective public policy. It simply isn't possible to be completely informed on everything that goes into every part of our lives -- if you actually want to live, that is.