The Allow Multiple Accounts plugin no longer works. I have a site that features posts by lots of different authors. But I create the users only for purposes of giving them bylines -- I don't want those authors to have access to things.
Which means I've been creating many users with the same e-mail address. But it appears that WordPress 3.0 won't allow that any more. Does anyone have an idea on how else I can create multiple authors without giving those authors access to the system?