If they're new to the command-line, I can see why they'd want to go with something approachable like Nano. If they're already comfortable with the command-line

If they're new to the command-line, I can see why they'd want to go with something approachable like Nano. If they're already comfortable with the command-line, but don't know Vim or Emacs, I'd keep encouraging them to take the dive. Of course, there's also gVim, so perhaps that's not quite the right way to think about it.