I was just trying within ACP to search in the user-list for the user's E-mail, so literally searching by e-mail.
It looks like users can only be searched by username, not by E-mail-address ?
it would be cool though if the admin.php > member search input field would not recognize just names, but if an email is entered and no user with that name was found, it perhaps quickly scans through the member base for that email and load that one ..
