Unless the file on your hard drive is a perfect match for the file already being seeded, it won't help anyway, as the torrent won't 'recognize' your file as legitimate for the swarm.
They connect the Mods for DMCA violations. They seem to identify them the moment they are posted. Its probably easy because the BBA actors have very distinct names, so its easy to find the videos when they do a search..I assume they are probably using bots.