For the language Cymraeg/Welsh (code: cy) only a small list of ConfirmAccount strings are available for translation on translatewiki.net.
Can you add the latest strings to translatewiki.net please? If so I can add the translations for this language.
I wonder if other languages have good coverage or not.
If this is the wrong place for this request I am sorry. Do please advise if I need to go elsewhere.
I love the extension - very useful for keeping a wiki nice and spam-free!