FWIW, one way Sandstorm addresses this is that anyone can sign in with their Google/GitHub/email if you give them a sharing link. So they don't have to have an

FWIW, one way Sandstorm addresses this is that anyone can sign in with their Google/GitHub/email if you give them a sharing link. So they don't have to have an account first. e.g. try this: https://mrdomino.sandcats.io/shared/bqY9H9opr0AnKa6XYtC1Obfu9Z3SaaSLal4ppwPvTDT https://mrdomino.sandcats.io/shared/bqY9H9opr0AnKa6XYtC1Obfu... This is my friend's bulletin board on his own personal Sandstorm server (admittedly ugly URL - we need to make it possible to make less ugly, but you could work around that with a redirect elsewhere). Visit it, and then sign in, and you're talking.