I think the downvotes (not from me - once a comment goes grey I tend to think the job is done for all but the most abusive comments) relate to the "I submitted this story and got no love" element (or maybe the smiley face).

We've all been there, and it adds nothing of value to the actual article or conversation to know it's a dupe, unless the previous one had a worthwhile discussion as well, in which case link to it.