2. We always had those kind of "busy" UI since IE, Netscape, Opera and Firefox.
3. Chrome comes around, makes a very simplistic UI and now many people assume that it's the only way.
IMO Chrome is just too simplistic, It's beautiful yes but is it efficient? For example, the first thing I do when I install Firefox on a machine is to display the menu bar. And I think it's a shame there is no more status bar as well.