I think what's missing here is that generally a phonebook requires that I know your first and last name, that you be the person listed in the phone book (and not, say, their kid or even their spouse), and that I can choose you from all the other Michael Smiths in the book.
Lastly, even then, your address is not updated by the second. It could be out of date. And I certainly wouldn't know what your living room looked like.
Instagram et.al provides your actual location. Often, at that very moment. Not the same at all.
Also, as I recall, the white pages usually only published names and numbers. Some people had addresses included. Yellow Pages was only business listings, which included addresses obviously, but I think that's a feature not a bug. Anyone know what % of white pages listings had addresses?
Lastly, even then, your address is not updated by the second. It could be out of date. And I certainly wouldn't know what your living room looked like.
Instagram et.al provides your actual location. Often, at that very moment. Not the same at all.