Hi everyone, I addressed this point here: https://github.com/bitcoinwarrior1/CitySats/issues/23. Remember that it's possible to create a burner Reddit account (which doesn't ask for an email address) and use that to sign in. This is arguably better than email/password auth as you keep your email address secret, and creating a burner Reddit account is quick and easy. I will probably add email/password login in the future; it's just a huge pain for the MVP.