Actually there might be a logical explanation for this. In my country, New Zealand, our stupid government has passed an act called the "Copyright Infringements Act" where if you are caught downloading copyrighted material, you may be warned three times, then fined up to $10,000. The New Zealand government and ISPs, however, play no part in the monitoring of downloads, it's up to the companies to catch people downloading their content illegally, so what Sony entertainment etc. do is they connect a bot to a torrent download to seed the file and connect to other users, if a user from New Zealand, or any country with a similar law, is found to be downloading the file, they can be reported to their ISP who will issue them a warning.