From Whence Does the Traffic Hail?

[Gruntled]

I've been seeing more and more sites start installing GeoIP databases and updatting their stats packages to see where the traffic is coming from.

Where does your traffic come from?

Would it affect how you design your pages if you knew that most of your traffic was coming from a certain part of the world? Would it cause you to shift your target niche if your traffic were coming primarily from, say, the Netherlands as opposed to traffic from the US and Canada?

At what point would you consider creating a mirror subsite translated to another target language?