Earlier quoted context omitted.
They buy what they are presented with and whats considered popular. How can they know up front whats good and bad? Thats how the movie industry still works that how the music industry used to work. I bet you Netflix show the same tendency of having more people see non-chart movies than if they had to pay for it.
As to why you're downvoted: HN has become rather eager to downvote. I'd even say toxic, because a few months ago I were downvoted and I knew I deserved it. Nowadays it's because I or someone else has an unpopular (but well reasoned) opinion. It's frustrating, not because I care for my Karma but because I'd like to have a discourse beyond agreeing on the popular opinion.
Which is why I really wished down votes came with a requirement to quality why you are being down voted.