notifications/leave stops the authenticating user from receiving SMS
notifications of the specified user's tweets.
If you'd like to unfollow a user, you're looking for friendships/destroy:
On May 20, 2010, at 12:05 PM, roteva wrote:
> I am seeing a problem using
> https://api.twitter.com/1/notifications/leave.xml, (with oauth)
> in that it returns a good status (200), with the correct user info
> specifying the user
> I want to un-follow.
> However, the follow/friend status is unchanged. AM I using the wrong
> API method
> to unfollow?
> Thanks for any hints,