Is there any way to involve TranslateWiki in translated MediaWiki: namespace strings?
Sometimes things are translated via subpages, e.g. MediaWiki:Foo/fr, MediaWiki:Foo/de, etc. That works okay for static texts, but it's hard to know when or if we're missing a translation.
It gets worse on Commons where licenses are defined by MediaWiki:Licenses. Ignoring the "language hacks" that were done like "enownwork", this is really a data structure that has to be internationalized, and sometimes the different translations of the data structure get out of sync....