Sensei LMS

Sensei LMS is a WordPress plugin for creating and selling online courses. While it offers robust course creation and management features, it doesn't align perfectly with the 'online publishing platform' concept of Medium. It lacks a direct 'distribution and recommendation engine' for content discovery across a broad platform, as its focus is on individual course creators. The monetization is through direct course sales via WooCommerce, not a membership model where writers earn based on reading time across a platform. However, it does offer a rich text editor for course content, monetization through course sales (which can include subscriptions/memberships via WooCommerce), and a form of content organization (quizzes, lessons, courses) that can be seen as a type of tagging/categorization.