1) Someone tagged me in a photo and it leaked their IP address.
2) Someone who is not even my friend commented on someone's status, and I got a notification because I made a comment before her. It leaked her IP address to me.
These situations are not comparable to e-mail, and I seriously doubt these people reasonably expected their IP address to be sent to me based on these actions.
Comments
1) Someone tagged me in a photo and it leaked their IP address.
2) Someone who is not even my friend commented on someone's status, and I got a notification because I made a comment before her. It leaked her IP address to me.
These situations are not comparable to e-mail, and I seriously doubt these people reasonably expected their IP address to be sent to me based on these actions.