I didn't. I just had an argument several years ago with a rabid Itachi fangirl about how Itachi is in fact as bad as they come.
Only now do I discover that Itachi probably genocided his whole clan to keep Madara Uchiha from getting to them first! And seriously. Why would Itachi stoop to kill all those people if Madara didn't have something even worse planned out.
I swear, Madara better be some sort of baby-eating butcher or something, because I just did a forehead slap at this moment. (You have to know. You have to see just how good Itachi was! YOU HAVE TO LEARN ABOUT THE REAL LIFE OF ITACHI!)