The Unfollowed
twitter.com
twitter.com
I do this when I want someone to stop following me but I might still want to follow them or I don't want them realizing/caring they're not following me anymore or feel I'm blocking them entirely.
"You have been blocked from following this account at the request of the user."
Enjoy the surprise in your TL :)
Gotcha.
Edit: And I wonder if they'll run out of API calls if enough follow it?