Just because pull-down menus are a great idea for Turbotax, doesn't make them the best idea for a webbrowser. The "good" one wastes screen space on stupid pull-down menus that will never get used. For a program used on occasion, yes it is a very good idea to follow standards strictly. But plenty of people do basically nothing on their computers but use the web-browser and Office. I think it's best to optimize these programs interfaces to actual use, irrespective of general standards.
I just spent 2 seconds to turn on the pull-down menus to my browser...and a File menu? WTF? How often do you need that?