The CRAPL: An academic-strength open source license. Open-source license to encourage academics to release low-quality source code.
Distribution of GPLv2-licensed FOSS via BitTorrent violates the GPLv2
A comments document from the GPLv3 development process discusses the possible GPLv2 violation regarding BitTorrent, and the need to unambiguously address it in the GPLv3.
In April 2010, Lawyer fines user €700 distributing Linux ISOs via BitTorrent, as user is not fulfilling terms of the GPLv2 and thus committing a copyright violation. The Debian project later posted a press release that this particular C&D order was a prank.