Story: So, the white and nerdy post inspired me to post an old bit of really bad white rap, where he is middle class and cuts the grass, much like Weird Al's opening. I found the version on break, searched here for middle class, average homeboy (the name of the video), that sort of thing, found nothing. Did my submission. It provided me a list of possible dupes, it wasn't there. Finished submission. The URL:

http://www.videosift.com/video/Average-Homeboy-2

Whoa, "-2"? So I pop in
http://www.videosift.com/video/Average-Homeboy

Sure enough, it has been submitted, though was discarded due to being a dupe (which isn't so well tagged or entitled). I discarded it.

Now it was not tragedy or anything (and I could have found it with an advanced search), but as a suggestion, listing discards in possible dups might help find this sort of thing if it occurs very often.