These features aren't nondiscoverable; discovery just takes place outside the operating system, in communities like this one. Good designers know that communiti

These features aren't nondiscoverable; discovery just takes place outside the operating system, in communities like this one. Good designers know that communities are a constant of the power user UX just like a settings menu or instruction manual. You don't have to pollute the UI with hints and copy about every little thing because power users are their own discovery engines.