To promote this to a top-level comment, because I think it's important context: nothing in the README file says the point is to be "beginner-friendly". As far as I can tell, that's something that Hacker News or whoever submitted this used as a description. Neither the word "beginner" nor the word "friendly" appear in the README; its goal is to "be the smallest functional Emacs in less than 2000 lines of C."
I think somebody incorrectly described Atto as comparable to nano/pico, and these comments are dragging it because it's not something that it was never intended as.
I would never drag pico. I wrote software that's been packaged in Linux distros in pico. And I lost the urge to be The Smartest Guy In The [Room/Mailing List/Forum] a long, long time ago.
From the announcement
> To ease the transition for new users...
So I would consider it for beginners ("new users") and friendly ("to ease").
Well nano pico atto ... the name makes it comparable. Why would you expect people to not draw that connection?
I think the main take-away is that vi/vim is too complicated for many folks. I use nano a lot on the commandline. For quick editing it is so much more convenient than vim.
OP here, I just paraphrased the announcement:
> To ease the transition for new users, #NetBSD -current now includes an alternative editor to vi(1) and xedit(1) in its base system, atto(1). https://man.netbsd.org/atto.1
> It is a modeless screen-based editor similar to nano, pico, xedit, or emacs. It is only 48 kilobytes, making it suitable for inclusion in the rescue system.
I think it's fair to call it beginner-friendly, in context of BSD and vi, but maybe indeed it shouldn't be a part of the title.