On Sat, 12 Sep 2020, 18:36 Gregory Heytings via Emacs development discussions., <emacs-devel@gnu.org> wrote:

"Not now" would not do anything, so the initial greeting would be executed
again the next time Emacs is started. And "Don't show this again" would
create an empty ~/.emacs / ~/.emacs.d/init.el, so the initial greeting
would not be executed again.

At the risk of adding to the bikeshedding, may I ask that if you click on "don't display again", the UI displays a brief explanation that it created the file and where it is?

It's a pet peeve of mine because in many applications I have selected such options accidentally and then had no way to find out how to get back to the original state.