- Visit https://translatewiki.net/wiki/Special:MainPage as logged out user
- Start the process to ask a translator account
- Pick a language which can't be currently translated
Result: languages which are disabled but known are accepted; but languages which are not known to MediaWiki end bad. All translations are discarded anyway when the account is approved, so it's fine to accept any CLDR language.
This will also allow speakers of unavailable languages to get an account and request the addition of their language.
Split from 70612.
Version: unspecified
Severity: enhancement