Because Microsoft has a history of being horrible at following industry standards.
Believe it or not, Microsoft is the standard for personal computing.
It may be a de facto standard (since every body is practically forced to use Microsoft products in a daily basis), but rkruger is not wrong.
Take POSIX for example, Microsoft never was fully compliant to it, and even now, it's an optional subsystem. Optional being the keyword.
And when talking about browsers, IE always tried to "create" standards, making their own little experiments, breaking compatibily so other browsers couldn't compete with it. Today, it is always behind of all the other browsers when talking about new features implementation.
Putting it short, if you want to make a desktop application, the Microsoft platform maybe the way to go, but web apps? I'm not so sure anymore.
OT: I like how the page is turning out, I'm not a fan of the background + shadows combination tho, it makes it a little harder to read at least for me :/
Anyway, are you planning to add something else or it will be all polishing the design from now on?
