Tumblr’s Unclear Future

Brian Feldman, writing at New York Magazine:

The future of Tumblr is still an open question. The site is enormously popular among the coveted youth crowd — that’s partly why then-CEO Marissa Mayer paid $1 billion for the property in 2013 — but despite a user base near the size of Instagram’s, Tumblr never quite figured out how to make money at the level Facebook has led managers and shareholders to expect.

I haven’t read a Tumblr blog regularly since Property of Zack closed down. I haven’t even logged into my account in quite a while now. What’s the main Tumblr use case these days?