Wow, years later, even after her de facto demotion at Google, people still think she's some kind of product genius? http://news.ycombinator.com/item?id=1028615 This is a hilarious situation.
From the description, her behavior reminds me a lot of how Steve Jobs behaved. If you read the biography, Jobs would often contradict himself, he was extremely rude, he would cry at meetings, he would hear an idea and say it was shit, and then the next week propose the exact same idea as his own, etc. I'm not saying she is at all comparable to Steve Jobs, but it sounds like they both know what they want, and don't sp…
Further, I would say the people who want to judge a character by a few anecdotes are being lazy, small minded, and short sighted. Jobs, Gates, and Mayer are all different people with their own styles. I'm not sure if Mayer's style will be what Yahoo needs, but I wish her the best of luck.