[fusiongyro]

845 million users is a lot, but it's not the entire internet. I still manage to have friends despite not having digitized them with a Facebook account, and I could still use help keeping track of their birthdays and what to get them--if that's what this site lets you do.

[king_magic]

Fair enough, but I think if you look at it from the developer's point of view, they are trying to get a minimally viable product in front of their target market - which happens to be immense. Yeah, sure, some people might be inconvenienced by not being able to use this without Facebook, but for now, they have an easy* way to connect with the vast majority of their target market.

*easy used relatively here