The fact that you want to read updates in your feedreader doesn't affect me at all - I friended you/accepted your friend request, so I'm OK with you seeing what

The fact that you want to read updates in your feedreader doesn't affect me at all - I friended you/accepted your friend request, so I'm OK with you seeing what I'm up to on FB. The problem is that in order to do that, what I've done on FB has to be put in an RSS file available somewhere, and if it's available somewhere, there's nothing to stop someone else (who I haven't consented to see my updates) from adding it to their feedreader. So while you (as someone who respects privacy) may create an RSS feed that's not linked to anywhere and has a name that you wouldn't find randomly, FB can't guarantee that you'd do that, and even if you did, can't guarantee that no one would find it somehow. Put simply, if there's no authentication within the FB ecosystem to see that data (which there wouldn't be, since you can't create an RSS feed that requires a FB login to poll), they can't police the access controls set up by users.