Your facebook.com email address was exposed with the same permissions as your profile. My personal email is still visible to my friends only, and my facebook.com address is exposed to only me when I check just now.
Also anyone who can see your profile knows your facebook.com address already, as it is the same as the URL to your profile.
Yes, exactly. That's why its so stupid for them to hide my other email addresses from my friends. I listed them specifically because they are alternate means of contacting me.
My personal email addresses were exposed to my friends, but when this change occurred they were hidden on my profile and only the facebook.com address was shown.
Also anyone who can see your profile knows your facebook.com address already, as it is the same as the URL to your profile.