I’ll invite you, but you’ll have to put your email address in the “about” section of your HN profile first. (The address in the “email” section of your profile is not publicly viewable.) Or you can just write your email in a comment reply if you’d prefer.
I'd be grateful for an invitation, too. My email is in my "about" section. Feel free to peruse my comments here to see if you think I'd add any useful perspective. (I say this without reviewing my recent comments first, but my impression is that I generally say relevant things...) Thanks.