Did you ever think of how you would feel, when you are forced to use the a system language you are not very familiar with, because translation in native language is misleading and wrong at many places? Did you ever think that it may be annoying for the user when the American language layer is the only binding one and nobody really cares about other languages?
Translations should be done more carefully. Major errors should be corrected.
You can have a list of examples from us.