Re: I stopped right here...
"This testing has been successful for Bing, improving the team's ability to ship changes without harming overall software quality,"
--Don't you need some quality to begin with in order to harm it?
But joking aside, what is Microsoft's rush? There is no additional revenue in any way I can understand by rushing to update and add 'features' to software that people have already purchased, one way or another. And the slip in quality control is likely scaring businesses and causing IT departments to take a hard look at more stable platforms, such as Linux.
Really, MS has just confirmed what its users have suspected for years--that they test in production and the world is their beta testers. And like many IT folks, I have a love/hate relationship with Windows--it keeps me employed but makes my head pound with "What were they thinking??"