An interesting point is made here: http://www.shinyshiny.tv/2012/09/facebook-private-message-le... "... many users who are still adamant the messages they saw were private and claim that Facebook is just trying to cover up its mistake by calling them all crazed liars."
I guess I am in that group, I strongly believe some of the messages I saw were originally private. Unfortunately, there is no easy way to prove this.
yes, but some people clean up their mailboxes. I know I do. Specially with something as spammy as FB email notification back in 2009. I did check my timeline and some messages there DO look like they HAD to be private - no way those kind of information would be posted on my wall. Unfortunately, i do not keep FB emails from 2009 anymore. I guess many can't prove because of this fact - deleted fb notifications from 2009/2008
Totally.
What's unfathomable to me, however, is that in the age of Gmail, in this ocean full of strident accusations, not a single person has been able to produce something like this. That's all it would take.