This code was released to developers as an incomplete preview. I'm not sure why people are holding it to the same standards as a finished product that's being released to end users. Seems like a pretext to talk trash.
Their product is released to end users, because the first thing every early adopter is doing with their shiny new host-you-own federated social network is sending out invites.
And may I add, I think it is really great that many public seeds are being deployed, this is the only and best way to test a social federated network, pre-alpha or not.