Medium's stats support my belief that vast majority of readers do not want to write blogs. And the vast majority of social networking users don't even want to read blogs!
I don't think the censorship issue is even in the consciousness of most readers and even bloggers.
Thus I conclude Steem has not found any low-hanging viral fruit.
I would not prefer to be blogging on Steem (as compared to a replacement for Steem that wasn't reliant on whales and note I am coding such now), because I am totally dependent on the whales, both for my reward, visibility and also for the security of the blockchain.