We're experimenting with the Facebook Connect join/login module (Boonex, 1.0.4 version). When a potential member joins with this method and accepts our Facebook application's permission requirements (name, age, profile pic etc) everything is fine. However, when they do not accept the required permissions and continue the join process then our site is left with members with literally only a username and occasionally an avatar if they allowed that. So... how can we prompt these users to actual input an email address after signing up... or better still... not allow the join process to complete without the required permissions! Any ideas?
