We've had to ask you this before recently, too, which is not good. Would you please take the intended spirit of the site more to heart?
https://news.ycombinator.com/newsguidelines.html
I'm really not sure where your vitriol for Azure is coming from. If you want to respond to the point, you should -- if you can avoid going off because you have an axe to grind with Microsoft.
And the point about emails is a real head-scratcher. Most of us have been online for a long, long time. I expect there are quite a few people working at Big X with a @hotmail, @gmail, @yahoo, hell, @sbcglobal personal email that they use for the rest of their online life.
Hot take. How about simply that they have had their email address a lot longer than they've worked at Microsoft?