The only time I have ever pirated was for a game that I had already bought... Simcity 2013. I bought it and the servers were so bad at launch that I could not play it, I instead downloaded a patched offline version, even after I had bought the game. That's when I believe that pirating necessary, when a game that YOU bought can't run without the use of pirating, if you could even call it pirating.
And no, i'm not encouraging pirating, and I have never pirated apart from downloading simcity 2013, a game I had already bought for $80. If anyone is to jump to an insane conclusion that I pirated FPSC:R somehow, then look in the funding credits, i'm a gold pledger named Dylan Walsh.
Anyway, I don't agree with pirating, unless it is necessary, like the above statement. Maybe I should have defined what I think is "Absolutely necessary" before I posted my post above.
EDIT: I forgot it was a patch and not a game download so... I guess I've never actually pirated anything. Unless you call a 3rd party patch pirating but that would be pretty stupid.
There are only two things that are infinite, the universe and human stupidity.