I suspect it might've been a couple of reasons: 1. I actually preferred this link that showed the highlights in a compact format. 2. There are some other HN u

I suspect it might've been a couple of reasons: 1. I actually preferred this link that showed the highlights in a compact format. 2. There are some other HN user(s) who seem to be obsessed with posting [dupe] comments like their lives depended on it, and others may find it off putting. I know I do. Unless it's an exact dupe and very recent, for me it has "ha-ha, gotcha!" or Wikipedia deletionist vibes. For some reason, "See also:" doesn't bug me nearly so much. Maybe because that seems like a notice for the benefit of the reader, but "dupe" sounds to me like a callout to a moderator to hide the story.