If such interactions happen in the "open", facebook is then encrypting information relating to such "open" interactions, so that people already familiar with things like pgp/gpg (of which, I assume who also know what email headers are) can know that such "open" interactions came from facebook and that such information regarding "open" interactions was not modified in transit?
I guess "completely out in the open" means different things to different people…
If such interactions happen in the "open", facebook is then encrypting information relating to such "open" interactions, so that people already familiar with things like pgp/gpg (of which, I assume who also know what email headers are) can know that such "open" interactions came from facebook and that such information regarding "open" interactions was not modified in transit?
I guess "completely out in the open" means different things to different people…