The inviter needs to know your email address to send you an invite. I suggest just putting your email in your HN profile (https://news.ycombinator.com/user?id=untothebreach). You can obfuscate it if you’re worried about harvesting. Or if you only want to share the address temporarily, for this thread, post it at https://onetimesecret.com/.

You comments seem fine, so I would invite you if I knew your email address.