You can download the entire PirateBay database of magnet files, in under 100 MB. If you want to provide a robust place to grab torrents, a hidden service is a

You can download the entire PirateBay database of magnet files, in under 100 MB. If you want to provide a robust place to grab torrents, a hidden service is a good idea. Beyond that, I think that dedicated TOR users will shy away from using BitTorrent since it's a huge privacy risk. They're more likely to be using FreeNet or I2P for anonymous P2P filesharing.