The article covers a core topic about libertarianism. Generally, this is limited to those few articles that are included as sections in the main Libertarianism article.
The article covers a topic that is vital to a non-lay person understanding of libertarianism. This includes key libertarians that may not be well-known to the general public.
The article covers a topic that has a very strong role in a specific field or strain of libertarianism. Subject is only notable within its particular field or subject and has achieved very high notability in that particular place or area.
Subject is not particularly notable or significant even within its field of study. It may only be included to cover a specific part of a notable article.