Indeed. Certainly most useful for getting a ballpark idea of where, in general, your users are located. I would guess anything that really depends on knowing an

Indeed. Certainly most useful for getting a ballpark idea of where, in general, your users are located. I would guess anything that really depends on knowing an individual user's location oughta use something more specific. But you could, say, put certain countries or languages as the default of a drop-down based on IP and be right and bunch of the time, while still allowing the user to make a different choice easily.