Comment 51 for bug 445123

"The issue is not only the one little checkbox in the configuration dialog, it's that it makes easy to enable a login screen mode which has usability issues and didn't get enough testing, if we make something easy to do we should make sure it's working as the level of quality required which is not the case for power users command line changes"

So organizations that need to deploy Ubuntu in anything more than a simple standalone desktop environment must rely on a buggy login screen that is hidden from the UI config script and the status quo will be maintained being on the year people have bitched about it. Bravo. Bravo.

/facepalm