Interesting. Can you see the story that you submitted yourself? When I look at your list of submitted stories, the last entry there is from 3 months ago. I also see some of your submissions, including those with only 1 point.

Now, I only ever submitted a couple of stories myself, but as far as I recall they start at 1 point by default, and can only be upvoted, so this is the lowest possible value. I can also see other "[flagged]", "[dupe]" and "[dead]" stories from the past couple of hours in the "newest" feed. When I click on another account's story that was "[flagged]" and is "[dead]," I can still see it listed under that account's submissions.

For the record, I doubt any such story would be buried here intentionally. Perhaps there is some other automated mechanism to remove duplicates if the linked URL matches exactly.