Your email address will not be published, only the date of the comment, the comment, and your website URL are published if you entered your website.
I set it up so that if you're a guest your comment is sent to a moderation queue where I receive a message the next time I login that there's a new comment posted. I can review the comment and decide at that time whether to publish it or not. I set it up so that I can not edit posts - I only decide whether to publish it or delete it. I don't want people thinking that I am manipulating people's comments; I only moderate them as necessary. If you're logged in then your comment is automatically published and you don't have to enter the fields for name, email, verification code, etc. because all of that information is verified through your registration.