I would welcome color palette to pick color from. Dark is not enough, I wish at least pitch black. Well, they probably care as much as web designers.
Good. A dark theme would be dull and a bit depressing indeed to look at.
I love dark theme. But not necessary but ultimately it is a good option
Not having light theme in Windows 10 is even more dumber. And they even ditched of white titlebars in TH2.
Yet light theme is much more easy to use. It's good Apple and Google went this direction. Enough of dark depressive interfaces of iOS 6- and Android 4.3-
Good. Dark theme is for stupid people. Or for those who own an LG or Motorola phone, cause those with those third class displays you will be needing a dark theme :)