Elizabeth de Luna. The inside story of how Tumblr lost its way. Mashable, February 2022. URL:
This article talks about how Tumblr was mismanaged by the many different acquisitions it went through. Many of the employees didn't feel like their voices were being heard about the user experience and where they thought the platform should go, and many decisions were made by the leadership that was only interested in Tumblr as a business rather than understanding Tumblr in context. It talks about Tumblr's irrelevancy and how it got there through bad leadership.