How does that keep happening by the way? I was pretty sure the system detects duplicates automatically and doesn't even let them through? That's what happened every time I tried to upload something that was already up. (And in the queue, so not actually visible yet.)
The system can only detects exact duplicates. The most common thing it doesn't detect is "identical" images of a different resolution. Other things are filesize differences, watermarks (or lack thereof), etc.
