Man, OK. We're not Facebook, I just don't think we had the resources to do something like that. It's a small private beta of a bootstrapped company's reading app... very different from a billion+ user service like Facebook.
On goodreads/X, we have a loooot of users who use neither of those, so I don't think that approach would have work.
I take your feedback and will try to do better next time. We really just didn't think people would care that much, as far as I can tell you're the only person who has brought this up with us.