Yet the mainframe is by far the most reliable and secure environment where to run production software. The folks working on mainframe have traditionally more rigour in their processes than those running mid-range servers. At least it was the case not that long ago.
I think people liked Metro. It's the confusion in having some components in Metro (with almost no features) and it's traditional desktop cousin which had all the features you'd expect. Metro simplified too much. As soon as you needed real power, you needed to switch to the desktop version. Most of Windows management components were no available in the Metro UI.
I'm not sure Windows 10 solved this... time will tell.
That being said, I'm glad you liked Metro.
1. Ask.com has always been included in Java installations.
2. Yahoo isn't the first to sneak themselves as a replacement search engine.
3. Proper browsers will stop this unless user approves.
4. I can always switch back.