I usually see "left-libertarianism" used to refer to left-wing market anarchism, not to something between progressivism and libertarianism.
During my time as a libertarian, it was common to refer to people like Nancy as "liberaltarians". You are correct that "left-libertarian" usually signifies a certain kind of anarchist, not a progressive/libertarian hybrid.
In the big survey, political views are divided into large categories so that statistics are possible. This article is an attempt to supply a text field so that we can get a little better view of the range of beliefs.
My political views aren't adequately expressed by "libertarian". I call myself a liberal-flavored libertarian, by which I mean that I want the government to hurt people less. The possibility that the government is giving too much to poor people is low on my list of concerns. I also believe that harm-causing processes should be shut down before support systems
So, what political beliefs do you have that don't match the usual meaning of your preferred label?