Olney - 1:21 am on Jan 17, 2011 (gmt 0)
This really makes no sense for markets like Japan where the capitalization can help Japanese users read the URL better.
I think they are doing this so that users can't tell the difference between paid & organic.
Not that your client's CTR is improving but clicks to paid search vs organic has improved.
They just left out what the improvement was on.