As is shown by the number of upvotes, people don't come to HN to educate themselves. They come here to be awed. Education is a side effect.
Not for me. I find the defining characteristic of hacker culture to be the inventive re-purposing of things.
Google Beatbox is exemplary of this.
(here's one from this week, by the way: http://pudgykitties.tumblr.com/post/1662418075/why)