I wouldn't say he "ripped my heart out" but I've disagreed with Yahtzee quite a few times. His opinion of GTA IV, for example, was that it was a mediocre game with annoying elements. I agreed on the annoying elements, but I found the gameplay to be absolutely fantastic. I enjoy the fact that old ladies, when I hit them with my car, behave somewhat realistically. I like the fact that the car controls are harder to handle. I really liked the story. If it weren't for the annoying friendship simulation part of the game, it would be practically perfect to me(the worthless money is pretty annoying, though).
Similarly, I love World of Warcraft. He said some nice things about it, but his ultimate conclusion was, to me, straight out of insanity. MMOs aren't about numbers. I know people like to kid themselves and think they are, but they're not. It's not the numbers that actually get people, it's the goals. MMOs are very goal oriented. I have to do A so I can do B. Once I can do B, I can get ready for C. Once C, D, E, F, and G are done, maybe I should work on H. Numbers don't enter the equation, they're merely a vehicle.
When things like this happen, when something I love is taken apart by a critic, sometimes it hurts. But I realize that MMOs aren't for everyone. GTA IV isn't for everyone. Not everyone likes what I like, not everyone loves what I love.
So I get over it. I like what I like and I'm not ashamed of it.