I'm intrigued by the fact that Tumblr's core product strategy isn't immediately obvious, suggesting that the platform's true focus may lie beneath its surface-level features. https://staff.tumblr.com/post/722477242948747264/tumblrs-core-product-strategy
I've always thought Tumblr's strength lay in its community and user-generated content – maybe its core strategy is simply to facilitate that in a unique way?