What is the "Other" account in LightDM?

I use Ubuntu Oneiric and I would like to know what is the account named Other for? It does not appear in the user manager. How can I remove it?

Solution 1:

Other actually isn't an account, but an item that will allow you to explicitly type in a user name. Sometimes you don't want to show users in the greeter, but you still want to be able to log in with them. That's when you'd choose Other.

About removing that entry: I don't think it's possible. Seems it's hard-coded in the greeter:

...
else
{
    foreach (var user in LightDM.UserList.get_instance ().users)
    {
        var label = user.real_name;
        if (user.real_name == "")
            label = user.name;
        user_list.add_entry (user.name, label, null);
    }
    if (greeter.has_guest_account_hint)
        user_list.add_entry ("*guest", _("Guest Account"), null);
    user_list.add_entry (null, _("Other..."));
}
...