Do you have en-US or en-GB as an alternate, lower-priority language?
If an English variant is in your Accept-Lang: headers, I'd hope YT wouldn't auto-translate English titles.
The other thing that Google might properly use is account-specific language settings. But if they're using GeoIP as has been suggested, I agree they're doing it wrong.
If an English variant is in your Accept-Lang: headers, I'd hope YT wouldn't auto-translate English titles.
The other thing that Google might properly use is account-specific language settings. But if they're using GeoIP as has been suggested, I agree they're doing it wrong.