Problem: LanguageConverter is usually not used in system messages and translatable pages. For example, editing a MediaWiki-namespaced page "xxx/zh" does not affect "xxx/zh-cn", "xxx/zh-tw", "xxx/zh-sg" etc, which means, readers whose interface language is "zh-sg" sees the original content that is defined by the software, instead of the converted version of "xxx/zh". In Chinese wikipedia, bots are used to automatically convert and create "xxx/zh-cn", "xxx/zh-tw", "xxx/zh-sg" ... pages according to the content of "xxx" or "xxx/zh"
Proposed solution: Convert contents automatically when displaying system messages, without the need of creating subpages for each language variant.
Who would benefit: Users using language-converter system, for instance, users speaking Chinese