The Holy Reason why I stopped loving Bing
I admit it. I'm totally a big fan of Bing mainly because of their very catchy videos. The tagline "What has search overload done to us? Find the cure at Bing.com. It's not a search engine, it's the first ever decision engine". I think they really nailed marketing it. Here's another video which I like most.
But they forgot one thing... The final logo is horizontally stretched! Yay!

Bing sets New Record in Horizontal Scaling at underconsideration.com
Many may think the logo is cute or "That's fine!". But designers do have visual sensitivity and a respect on balance. Stretching is fine, but stretching without giving attention to the details like the curves and rounded corners may affect the visual balance. Overall, I don't like the logo. Disagree? I would love to hear your voices in the comments. :D