I use Friends here to regulate who can PM me & who cannot. You can set your PM settings to only allow people on your friends list to contact you; doing so (for me at least) drastically cuts back on the number of people PMing me with demands of content & asking questions I've answered dozen of times in posts. I think of it more like a contact list then a friends list.
Yea ken just sent friend request. Like perrock said thow, its pointless unless we're working on something together like my up coming route for example!