If the closest clause in the FR forum rules you can find isn't all that close, you're wrong.
Now it seems pretty clear to me from the above that one should not post private e-mail.
"... Addresses."
That's what it says. Don't post people's private email addresses without permission.
Now, if we're buddies and--never mind the medium--you confide something to me that could be harmful to you, only to have me blab it all over town, I've betrayed a confidence.
If my dog dies, and you send me note gloating that you poisoned him, only to have me show said note to the police and all the neighbors, you were indiscreet.
Other information Vade. People send personal mails because they do not want to make the contents public. It's pretty simple and we do not need to turn this matter into a thread, we just need to not do it again.