I just tweaked the template for my site layout to no longer display email addresses of commenting users (the ones who enter one). I have no idea why this wasn’t the default behavior to begin with, but now the comments are displayed like most other sites. If you specify a homepage, that link will be used to display your name. If not, there will be no link. You can now feel secure in putting your email address there; I’m the only one who will see it, and you can have replies to your comment automatically mailed to you.
Sorry for the prior inconvenience this may have caused anyone who entered their email not expecting it to be displayed.