I disagree, in that it's the opposite. You might want to put some internal calls in Unicode as a way to gatekeep contributors and users to people who are serio

I disagree, in that it's the opposite. You might want to put some internal calls in Unicode as a way to gatekeep contributors and users to people who are serious about using Julia. But if you think your project could be used by casual explorers, your public API better not have Unicode calls, or, at least provide sensible non-unicode aliases for unicode calls.