Agh, the Stellar client requires a Facebook login to get a share of the initial batch. :/
Of course it does, otherwise I'd be able to register an unlimited number of accounts to get as much free Stellars as I wanted.
The barrier to creating an unlimited number of facebook accounts is a half step above creating an unlimited number of gmail or hotmail accounts.
No, the whole point of connecting with facebook is to focus on the UX of making electronic payments. Who's going to remember their coffee date's wallet is 1BeX1pVAjD94hNs6C5d2dB3TRnLx53dXg3? QR codes are cute, but haven't quite hit the mainstream. It's a lot easier to say "Ben Bitdiddle" and have Ben's facebook picture pop up.
The network effects of scanning your entire social graph (and the data contained within) doesn't hurt either. Works fantastically for Venmo.