Since content is king, I want to propose a feature that allows me to track content that is copied off my sites. It has been done before (see [http://www.tynt.com]), but I still think it would be a very nifty feature for piwik.
Sadly, I am not a developer, only a web controlling guy. But I would guess that this is something that would need to be done in Core, not as a plugin. But that you know better :-)
It seems to me the original reply to this ticket referred to enabling tynt.com's services to be tracked within Piwik. However, I think the original ticket's language suggests it is indeed a feature request to track copy + paste within piwik itself. This could be a hefty extension and out of scope, but thought it was worth thinking about again because I would love this feature and tynt has absolutely no competitors, especially no open source ones. It may be the case that a new entire project is required for this issue.