[junto]

My major problem with Bing is that it defaults the interface language based on your location. This is stupid. If I'm travelling in China, then having the entire interface in Chinese is completely useless.

Bing like many other major sites, make the poor assumption that the user's location == preferred language.

From a usability perspective, the interface language should primarily be based on the browser user agent Accept Language, and THEN an ip-to-geo database lookup can OFFER the user the location based user interface language.

Finally there should always be a way to change language.

Bing, as in the entirety of Bing, does not have a way to change language. I am currently in Germany, and there isn't a way for me to use the maps in English.

It is a schoolboy mistake from a major player. Idiotic if you ask me.

[ccozan]

Use the "gear" on the top right, go to Worldwide ( last option) and use the US or UK. The experience will be as if in the respective countries.

[junto]

Awesome. I've spent months being annoyed by that!