WordStar was for CP/M and MS-DOS, which was very much doing its own thing. Atto is for Unix.
For many, it is indeed about what they call "muscle memory". Almost impossible to change after so many years. And therefore I hope everyone would provide keybinding alternatives generally (shouldn't be that hard).
Or ARM? It's from the 1980s! So old!
Despite all those flaws, people keep writing new software in C every day, go figure.
Not "40 years ago". Non-stop all day every day for 55 years.
The fact that you personally don't use it today is as irrelevant as if you were ranting about "why doesn't Linux have a Start menu!? It's 2026!!!"
That's… not what "standard" means.
I would prefer ms-edit or nano if I have to edit text files from the terminal.
Honestly after VSCode ate a good chunk of vim and emacs users I am not sure why something with similar UX but in terminal is not the standard yet in every *nix. Talk about sunken cost fallacy.
It did make for quite a surprise for existing users when the msedit logo popped up in their KDE Plasma launchers though.