lucy24 - 7:14 am on Nov 23, 2011 (gmt 0)
Your concerns are misplaced.
If you don't allow your search engine to tell me what you were searching for, I have no way to know if my page answers your question.
... and where the ### is the private-search setting located anyway? If I can't find it, how come 1/3 of ordinary users know how to turn it on?