"We think that the most interesting and thought-provoking discussions in Hacker News get regularly flagged or moderated, so we collect stories that reached the

"We think that the most interesting and thought-provoking discussions in Hacker News get regularly flagged or moderated, so we collect stories that reached the front page but exited earlier (typically due to flagging or manual moderator intervention) or interesting stories with a lot of activity and points that were prevented to reach the front page."