Requested access way before 100k and still haven't gotten in.
Generally, some might not feel comfortable letting strangers know their email, especially considering this is a site that encourages anonymity. Some might not appreciate doing so publicly either.
If not, I'd leave a way for contacting me first to make it easier for them.
The way I handle these situations: https://sonnet.io/posts/hi
If you don't want to hear that you are wearing an ugly shirt, don't ask an entire room full of people if your shirt is ugly.
I suppose most people on HN don’t include a public address in their profile because it’s not required (not even your email is required), not because they don’t want any direct interaction.