Earlier quoted context omitted.
Ok, I've replaced the emails with a contact form instead (still working on the captcha). Also, the login is your url: HNHackers.com/username
Password reset still isn't working. It says an email has been sent, but emails aren't arriving. Also, from another comment, HN usernames are case sensitive, so making them all lowercase will most likely cause problems sooner or later.
Maybe a mail queue setting?