My own interpretation of the rules regarding piracy is this:
The discussion of Piracy is not a crime, the facilitating of it is. Whilst we welcome discussion on most subjects, and are prepared to accept pro-piracy viewpoints as an opinion like any other, the linking, naming or other identification of piracy sites is not tolerated without a damn good reason (For example, mainstream stories involving the Website of the Pirate Party in Sweden, which I shall not name for fear of stabbing myself with irony). It is not the Moderators job to judge the posters viewpoints, merely their behaviour whilst expressing them.