GNU Emacs from gnu.org is usable without an init.el or any other customization. Every line in init.el is something that you have to maintain and move with you.

GNU Emacs from gnu.org is usable without an init.el or any other customization. Every line in init.el is something that you have to maintain and move with you. And when you're using someone else's computer, their init.el won't be what you expect.