Steemit also doesn't necessarily endeavor to stay in the picture long term. Steem is a blockchain, it's decentralized, it doesn't belong to any jurisdiction. Steemit on the other hand is a US registered business, and they will be getting all the legal heat associated with the financial, regulatory, intellectual property and political matters around Steem, and these are going to be significant when Steem snowballs into a huge unstoppable social phenomenon. Just how long they can hold before being forced to shutdown or toe the government playbook is anyone's guess. It would be a better thing for the ecosystem if tens of different frontends exist in different form from desktop and mobile apps to websites to browser extensions to plugins in CMSs to Tor hidden services. That way the heat and legal bullying will be much better distributed.