Crowdfunding the creation of the next version of LFGSS

http://tools.ietf.org/html/rfc2822 I believe is the RFC for email addresses. It's worth checking over, as it's far less strict about what's a valid email address than people think generally, and most of the plugin checkers for email address validation are far too strict.

You're right, and we won't be using email address to derive profile names past the Alpha - it was just a quick stop-gap to give everyone a profile name without a longer signup flow.

In future we'll have a 'fill out your profile' page that you get punted to when first logging in, with how to set profile name + avatar.