Obviously there's some marketing speeel in there but I do think in general folks wanna know why they're being followed.

I mean lets just go over to search here...

http://search.twitter.com/search?q=why+do+people+follow+me

There's some ammo right there to back up a concept like this. Will it save lives and make oodles, maybe not but could it fill in some blanks sure!

There's little value in lists and far more effort.