That junk is automatically generated, and is frequently not noticed. It seems like it causes a large number of dupes both here and on reddit, but I think it's a

That junk is automatically generated, and is frequently not noticed. It seems like it causes a large number of dupes both here and on reddit, but I think it's almost always an error. It's easy to forget or not realize that it will result in a repost because the system doesn't check for that. The trick of adding ?repost, etc is sometimes used to make a repost on reddit, but I don't think I've seen it here. Also, I wouldn't argue that all reposts are bad. If it received 0 comments and votes, despite being an interesting article, perhaps a single, better timed repost is in order. I wouldn't suggest resubmitting it repeatedly, but I don't think that single resubmissions are more harmful for HN than good content being missed.