Originally Posted by Bluspacecow
Your b.net email address is only used once during the friending process. Once it's used to connect you as Real ID friends then it isn't displayed again anywhere in game , in your friends RealID interface or in your friend's friends RealID interface.
I do believe the whole process is done via internal battle.net account numbers.
I was having problems getting on the PTR so I asked Shefki for help as he was able to get on the PTR fine and he uses a mac as well. When he logged in under my battle.net account he told me that new folders now appear in the WTF folder in the accounts folder. He said he had a 5 digit number folder in there and I had a 7 digit number folder in there.
So I think this would mean that if you are "forced" to give out your b.net email address to someone you don't consider a friend you could always change your b.net email address and they should still stay on your RealID friends list.
It's a good security practice to change your battle.net email regularly anyway - it's easy , takes no more then 10 minutes and changes the login name for your wow account instantly  |
Just checked myself in the test server folder and yep. I have a 9 digit folder in there.
EG.
Code:
WoW
|___ WTF
|__ 123456789#1
|__ WoWAccountName