One shared call, five targets, three different strings
Locale-aware formatting is implemented per platform, and the outputs differ.
i18n
3 posts
Partial translation is a number, not a feeling
Per-locale coverage against the base key set is a number you can compute every release — without it, shipping a language is a guess nobody owns.
The string literal that cannot be translated
A hardcoded string is not just untranslated — it is invisible to the sweep that finds untranslated text, so coverage reports complete while it is not.