That happens due the new feature flag. Now you can flag users, which is why we had to separate flagging feature and approve feature.
The full list of unapproved users is available only to the admin or moderator who has access to the admin panel as well
Yes, we know that it is omission from our part, this will be fixed or redesigned in other way in the nearest future.
http://yourwebthingie.com/users/waiting-for-approval
Regards,
Steve