I think it would be nice to let someone know what they said that was impactful enough to earn a follower.
Instead of simply getting an e-mail that says, "scaryghost is following you" (which would be scary in real life but in Hubski it means something else), it would be nice to see "scaryghost is following you. They said, 'I liked your comment about scary ghosts being different on Hubski.'"
What up with it?
You can always PM the people you follow to let them know :)