users need the ability to create uncluttered, highly customizable collections of their work, which can function as an intermediate step between simply publishing it on their profile and creating a personal publication.
Medium’s Personal Publications, and Publication Accounts
Brad Decker

There needs to be a “one-stop shop” to check the work of the authors you follow, without forcing them to create their own personal, exclusive publication (especially if they don’t want to). Your Friends @ Medium and Ev Williams, wouldn’t you agree?