I'm concerned that some of your sources are 3.5 years old. Piracy is bound to happen with UGC websites, what really matters is how those sites react. Those sites you listed have done a fairly decent job fending off the illegal content by ways of both manual and automated removal of copyrighted content.<p>Also you stated the following, linking the source for evidence:<p>"The reality paints a different picture, of pirated content driving the lion’s share of pageviews, while other original content is left in the dust"<p>However nowhere in the TC article mentions pageviews, or the percentage of pageviews broken down by legitimate/illegitimate content.