As a sysadmin, this drives me crazy. I log into a lot of systems I didn't set up, and then I press the key at the command prompt to bring it up in an editor, or invoke something that uses an interactive editor, and its nano. I have to exit it, export EDITOR=vi and do it again. I don't even like vi as a standard editor. I just expect the system default of vi, and nano is painfully underpowered. I'd even adapt to it running emacs, but it's like getting a nerf hammer every time you need a real one when the system pulls up nano by default.

Or as an emacs user, we deal with a lot of weirdness by modern standards. But when someone asks for a random change, it's more a matter of, "sure, knock yourself out."