Demonoid is a large scale private torrent site. It has been attacked many times with DoS attacks from various people or groups. In certain instance like this one, I can see the reasoning of the person launching the DoS but it's still unethical. Granted Demonoid caters to pirating music, movies, and software. They do however, have alot of good free distributable content and it's often faster to get it from torrent than the original source. As a result of this DoS, users were unable to access the site to get torrents for literally months. While this negatively effects Demonid, I'm sure it had little effect on the overall torrent market. Traffic was just pushed to other popular sites such as The Pirate Bay.
Mennecke, Thomas (2010) "Demonoid Suffers from Massive Denial of Service Attack" Retrieved from: http://www.slyck.com/news.php?story=1947
