The Zettelkasten Method seems to get more and more popular. With popularity of methods there always comes a problem: Overzealous Orthodoxy. Some people, for various reasons, try to state what a Zettelkasten is and what not.
The hilarious part of this is that within a much broader tradition of Western intellectual history, Niklas Luhmann's zettelkasten is one of the most heterodox approaches on the map.