BuddyPress.org

I’d say this is hard. I think i saw someone who did something close to this where they basically took the email address and then just cut out the first part of the email to use as the username. Of course, then you have to deal with overlapping usernames if both are john@… Sorry I don’t remember where the thread is that talked about it. The problem I see with doing this is that the username is used so many other places that just taking one based on the email is a bit awkward for the user experience imho.