What is posted on the STEEM blockchain through other interfaces is accessible through Steemit but. But if it is on the blockchain, it is accessible to anyone who wants to look...that is the point of blockchain, it is open.

However they do not have the same surveillance as Facebook in terms of where you go, the ability to follow your moves around,

Just the fact that there is a US corporation behind this project which is governed by US law does not give me much confidence in a sustainable future.

Many have confidence STEEM has a sustained future.

If you think this is such a broken business model like Facebook, why are you honestly here?