That's not what I or the user was referring to. The user and I are referring to the difference in posting and discussing as a public post rather than talking t

That's not what I or the user was referring to. The user and I are referring to the difference in posting and discussing as a public post rather than talking through Messenger or email which is a more intimate service because its not broadcast publicly. Not the information and data privacy behind what Facebook might do or not do with that information behind the scenes.