[ridgewell]

>Canada ISPs have frequently given subscriber contact information to copyright holders to issue warnings based on bittorrent usage without being legally required to.

This is false. ISPs do not disclose your personal information for copyright complaints.

Industry, Science and Economic Development Canada explicitly states that subscriber information is only disclosed "if ordered to do so by a court ... as part of a copyright infringement lawsuit." [1]

Copyright infringement suits are known to have happened, but they are rare because the limit for non-commercial infringement is $5,000, which is generally not worth pursuing through the courts.

[1] http://www.ic.gc.ca/eic/site/oca-bc.nsf/eng/ca02920.html