Could be your ISP - especially if it's Comcast - is monitoring illegal downloads.
In a download context, there is no legal use for torrents.
Sorry if you didn't know the downloads are illegal but torrent downloaders are regarded as Internet thieves.
In music, the srtists are being deprived of royalties (part of their salary) to which they are legally entitled.
http://answers.yahoo.com/question/index;_ylt=Aj_LS8c2DB2cFyX8mVRtr.Dty6IX;_ylv=3?qid=20090820185139AAHpHDx&show=7#profile-info-4hwwmNxeaa
In software/movies, it is money from sales of existing product that provides the money to create new product. Basic rule of commerce and kinda how the world works