Jim, revealing public information like that is unacceptable! I'm sorry that happened to you. 

We've actually been discussing adding something about this issue to that first tutorial/explanation you see when you sign up. Hopefully, your fellow commenters would rate a comment containing personal information as "uncivil". If not, it could be flagged after the fact, which would bring it to the attention of an administrator.

This is a big problem on the internet in general; I hope that Civil Comments can at least help in preventing this kind of behavior.