If you go to https://demoday.ycombinator.com https://demoday.ycombinator.com and try to login, it gives you an e-mail address... maybe try shooting an email to

If you go to https://demoday.ycombinator.com https://demoday.ycombinator.com and try to login, it gives you an e-mail address... maybe try shooting an email to that person?