The "email" field in your HN profile is not shown to other users. You need to put it in your "about" field if you want it to be public. Many people don't realise this.
(The same is true for you, Eilene - your email address is hidden. If you want people to be able to email you, click your username in the top right of the page, and add it to your "about" section.)
(The same is true for you, Eilene - your email address is hidden. If you want people to be able to email you, click your username in the top right of the page, and add it to your "about" section.)