So how does my site communicate this to your browser? There is a P3P tag in the source of this and every other page on this site. The default tag for this site is: "NOI NID CUR OUR NOR", which was obtained by answering the following questions at the privacycouncil.com site mentioned in the comment:
If you have an account, and you login, then the answer to Q1 changes.
So why did I go through the trouble? Mostly just because I'm a web developer, & I think P3P is a good thing, and under-implemented. I'm still not sure why the latter is true, I believe it may be the potential for legal liability, but it may also have something to with it coming out at the very tail end of the Internet boom.