Not intending to change its current "declined" status, just to facilitate the understanding of the suggestion
The request is to allow content in languages other than English.
This is how it would work:
The user selects desired languages in preference tab ( default is English )
The systems shows content to that user in its preferred language(s)
When posting a question the system will mark the content with the user preferred language:
If there is only one language that would be used.
If there is more that one, the language will be prompted ( with the first language preselected )
If nobody change its preferences everything will remain the same as of today ( because English would be the default language )
No engine localization is needed, no gui translation is needed, no content translation is needed, no different domains nor auto-translate, nor volunteer translate is needed.
Only the ability of the system to filter non-interesting languages ( I don't understand a clue of Chinese or Finnish, but I could answer Spanish and English questions )
I understand and agree, English is a must have for good programmers, but StackOverflow is not only for "good programmers" but also for those who get NullPointerException
in a Hello World program.
Programming beginners may also be English beginners and they should not spend 2+ years learning English to start learning to program.