The thing is, if this becomes commonplace, the Bittorrent protocol will just be modified to avoid it. I've had this happen occasionally - you get hundreds of p

The thing is, if this becomes commonplace, the Bittorrent protocol will just be modified to avoid it. I've had this happen occasionally - you get hundreds of peers feeding you junk data which wastes bandwidth. Torrent clients automatically ban a client after it sends too many bad parts, so the torrent would probably finish eventually, it'd just be a waste of bandwidth waiting to get connected to a legitimate peer.