Cause You Are a Pirate!
I have some news from Ubisoft for you, dear PC gamers. Please find it here. As you have most probably guessed right away, it is connected with the upcoming Assassin's Creed 4: Black Flag. To be more precise - in regards the game's release date for our platform of choice. The creative director of AC4, Ashraf Ismail, was asked about the release date and, quite elusively, admitted that the game will come out on PC a few weeks after the current-gen console version (the next-gen one will come out then the consoles are ready, obviously).
This is it, dear PC gamer. You are "a Pirate" and Ubi needs some extra time to create innovative DRM solutions. Ones which the real pirates will breach within a day, but who cares, eh?