This has probably been discussed before, but why does mediawiki (or at least, wikipedia) default to showing the interface in the language of the wikipedia, rather than in the language of the browser? E.g., when I visit ru.wikipedia.org, common sense dictates that the interface should be shown in English, the language defined in my browser preferences. Sure, I can change it by creating an account and defining my preferences, but even that is difficult enough on a foreign language Wikipedia, and extremely difficult for a non-Roman script.
What's the thinking here?
Steve