Makes sense to me! And I am NOT a Libertarian or a libertairan (I really don't know what difference the L/l makes, I know it's really important to some of you).
An upper-case L indicates the person is a member of the Libertarian Party. A lower case l indicates the person has libertarian tendencies in their political beliefs, but is not a member of the party. I give credence to a few libertarian concepts, but I am a member of the GOP.