That's not bad, thanks. My caution is that this would exclude people who use one of the long tail email addresses. Their own domain, or some obscure provider. A

That's not bad, thanks. My caution is that this would exclude people who use one of the long tail email addresses. Their own domain, or some obscure provider. And I think specifically I would like to include those people. Certainly not let them feel their emails are "secondary citizens" - even tho when it comes to integrations like oauth they are secondary. Because I think the fringe has a story to tell and I want to encourage people from "interesting domains" to come. At least that's what I in my unspoiled internet innocence want. Maybe it's not a good idea, but ... See what happens. Most probable thing is no one uses it, so maybe this is a "problem I'd love to have" at this stage. Thanks.