2. Since libertarianism is, by definition, fully supportive of the rights outlined in the constitution, being anti-gun / gun-grabber / endlessly wanting more government restrictions on what is a fundamental constitutional right makes her not a libertarian. The criticisms levied against her on this front are correct.
3. She's quite insulting. "most sane individuals on this side of the Atlantic," implying one must be insane to respect and honor 2nd amendment rights? "Preening contrarians," "infantile sneering," "rejoice in this toxic effluence." Yikes. Exactly how full of disdain and contempt is she regarding anyone's opinions that don't precisely align with her own? I find it rather hard to believe anyone she is criticizing is as vitriolic as the author seems to be.
4. The important thing is, she's found a way to feel superior to everyone..