They say they "take security very seriously" which is why you need to answer whatever questions are put in front of you to check certain things on your account and that's all fine and well but why oh why would they make it so difficult to find out when your account was created? Just by typing in your password and without any other verification you have direct access to your full name, your date of birth, your registered address, your registered phone number, your occupation, your gender, your unique ID code, can create permissions, can change your password and all the previous details but when it comes to how old your account is; Microsoft decidedly take that information as the most serious of all and do a whole song and dance just to give over that information. I mean let's be honest, that specific information is only of benefit to satisfy your own curiosity. There isn't a single site or application form I can think of that asks you what date you created your email account and even if there were, shy of hacking, there'd be no way for a 3rd party to access that information anyway to verify it.