Usage
This template categorizes pages using assessment grades and importance through built-in transclusion. An article's assessment is generated from the class and importance parameters in the {{WikiProject Libertarianism|class=???|importance=???}} banner on its talk page. This template should be transcluded and not substituted (subst) because it employs conditional code. Transclusion also allows easy updating of all the Project's talk pages without having to edit hundreds of pages.
Other parameters
small=yes — makes the template small and situated along the right side of the page (as opposed to at the top) Now obsolete.