I'm worried about the lack of progress in certain areas. But at the moment Steemit does have a leg-up through word-of-mouth, people being aware of its presence and so many using it. But I could see some other platform coming along that achieves much the same model, with a different coin, and surpasses Steemit in terms of development. It would have a long way to go to catch up. But I don't think its impossible. Steemit needs to worry about a competitor coming up from behind declaring a race with it to develop a better platform and a larger user base.