The transaction number is impressive technically, though ultimately irrelevant given a social network would be expected to have much more transactions.

In 2017, there's ample opportunity for a disruptive social network to grab millions if not hundreds of millions of users, but Steemit simply hasn't gained any traction outside of the tiny crypto bubble. That said, we'll see where the posts submitted and active users graph stands at the end of 2017. Steemit Inc has committed to focus on driving user growth - it'll be interesting to see how successful the marketing efforts are.