False, your HN account email is private (The "email" field if you look at your profile).
That's the reason why people often comment "put your email in the about field so I can contact you". People falsely assume the account email is public.
I have now removed it from there and will blackhole that account.
Thanks for the suggestion but I have a couple AQMs and the CO in my house is usually 0.
If I did put my email there it was quite a while ago. It's not hard to forget something you did/saw once a long time ago and never looked at again.