Same issue, same user, different SO question: Problem with Google translating Stack Overflow
The language policy of the SE network is basically "We use English". However, this assumption is sometimes subverted by automatic translation systems:
Well I don't understand why this site appeared to me in Portuguese, so nobody needs stupied ok. I'll delete all the questions and answers
I'm guessing this is an artifact of Google Chrome (which has automatic page translation enabled by default), or a search result proxied through Google Translate. I assume the user must have been terribly confused when she saw my request to use English, on a site which (from her POV) was written in Portuguese.
Do you think SO should show some sort of notice for the users if they're getting the data through an automated translation service? (Is it needed? Do users read?)