[Snowhog]

That isn't the same thing, and doesn't address the issue.

Currently: I register on a vBulletin forum with user name Bozo. My registration is accepted and I log in to the forum. Any where in the forum, I am identified as user Bozo, my actual user name used for registration.

Proposed: During registration, an additional field, call it Alias, must be completed -- it can't be ignored or empty. This field could not contain the same entry as the user name and not the same as an existing registered users user name or alias. It would be the Alias, after logging in with the actual user name, that is displayed throughout the forum.

So, I register as Bozo and specify DaffyDuck as my Alias. Both are validated as not already existing to registered users and I'm given a user account under the name of Bozo, but when I log in to the forum with Bozo and my password, my identity will be shown to be DaffyDuck.