mat_tap dupe files never verify if anyone uploading dupe files then he can't upload more than 4 bcoz they wouldn't verify so don't worry brother:)
Pardon me to say this but i think what OP said wasn't about new uploader who still asking for verified but for trusted and higher who don't need to request for verifying.
I also asking similar question regarding this matter on other site, not about movies but about books since couple of rare books that i purchased, stripped the DRM and upload here are being download, and uploaded there by their VIP uploader before i even able to upload on that place since i didn't use any API script bot for multi-upload to multiple sites at once.
The answer that i got was this :
"That's ok since they didn't retag and also we allowed multiple Copy of the same item since all the DMCA take down email that we got are per link, not per Title. So if one torrent link got taken down, there still some left for the same title"
Dunno if DMCA notice are per link or per title but if it's true, that sounds reasonable enough i think even-tough it would break the swarm.
I dunno tough in case of movies from the same encoder being uploaded by 10 peoples at the same time. It surely break the swarm big times.