Well, I was thinking it would be reeeally cool and efficient if when a person adds someone, they have the option of leaving a message (comment), too ... sometimes it's just really annoying to get random friend requests, and leaving comments ensures the person who is getting the request knows who we are ... you know? Well, when we set our privacy settings, that option of leaving comments is kinda ... gone. So that's why I was thinking of the option of tagging a short note onto the request.
By the way, your changes on KW are pretty sweet - I logged on after awhile, and, boy, was I surprised (in a good way!)!
Martian001 since January 16, 2011! 
P.S. Anyone want a cookie? ... 