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 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.
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