I understand it's possible to use email as a user name. But when you are actually logged in and start a thread or post a reply, the email address will show up on the left as your user name. Also, the email address will be your identification on the member list or who's online list. This just doesn't make a lot of sense for the users.
WashingtonPost's model is after you log in using your email address, you'll be greeted using your real name (such as, "welcome back, Joe Gibson" instead of "welcome back,
jgibson@yahoo.com). Is there a way to achieve all these at the same time?