This is a lot like graffiti in a city, and should probably be dealt with in the same way. Cities have been known to paint murals, react quickly to cover up gra

This is a lot like graffiti in a city, and should probably be dealt with in the same way. Cities have been known to paint murals, react quickly to cover up graffiti, and patrol so that they can catch offenders in the act. The HN equivalent of a mural is to submit something really interesting, that will be voted to the top quickly. The HN equivalent of covering up graffiti is to flag a post or a comment, or to post better stories and comments that push the garbage out. Though a way to mark duplicates would be nice. What we really lack is a way to catch offenders. I have seen several "karma: 1, created 15 minutes ago" accounts, that are always attached to useless contributions. Sure, I can flag a comment, but it's very obvious that the entire account should just be banned (and perhaps the IP it came from), and there's no flag that applies to an entire user. Perhaps there should be, at least for accounts that have only existed for a short time.