>>12
Edit two small files, get a mess of 12 buffers. And you don't need tabs, because it's so easy for us, nerds, to type C-x-b name-of-the-buffer to switch between the two buffers (among the other 10 garbage buffers).
Anyway that default (and totally not annoying) behavior is easily overrided once you've mastered Emacs Lisp! Provided, of course, you don't update, or all you seettings and dirty hacks would be broken every 6 months.
Emacs = old and buggy framework to write yourself an editor (in a shitty language).