I think the real problem with a site like that is that many people like to guard the tractable problems they think of. It's one thing to talk about your ideas a

I think the real problem with a site like that is that many people like to guard the tractable problems they think of. It's one thing to talk about your ideas and get critiqued with close friends, it's quite another to post it on the public internet! Edit: Changed "this" to "that" so it doesn't sound like it's referring to HN