I feel like HN is very well moderated in a way that's completely opaque which is its main strength. Users should not have to learn rules to participate, and the

I feel like HN is very well moderated in a way that's completely opaque which is its main strength. Users should not have to learn rules to participate, and they should not even be aware that they're breaking the rules really. Ideally they would just think that they are participating while not being aware that none of their contributions are ever seen by another user.