The Steemit whitepaper contains a blatant lie:
Censorship
Steem is a decentralized network that is operated by miners in jurisdictions around the
world. All user actions are publicly recorded on the blockchain, and can be publicly
verified. This means that there is no single entity that can censor content that is valued by
STEEM holders.
Individual websites such as steemit.com may censor content on their particular site, but
content published on the blockchain is inherently broadcast traffic and mirrors all around
the world may continue to make it available.
PoS isn't trustless and it requires centralized control. Steemit's block chain is DPoS. The white paper is lying.
Who has millions invested a corporate controlled block chain? Raise your hand, so we can throw eggs at you. (Don't use the lame excuse that you can't cash out, this was your decision to invest under those terms)
Oh lookie here below, they lie to claim their corporate controlled block chain is a trustless immutable attribution database:
Shifting Toward Blockchain-based Attribution
The internet represents the easiest medium for distributing information in the world. With that said, it can be a frightening place for content creators who would like to own their content and have it shared with proper attribution. On current social media platforms, attribution is something that can be lost overnight - a posted video or image can be replicated and re-shared without consent or regard for the creator.
Under blockchain-based social media, a creator or author would always be able to point to a public record and timestamp showing proof of their content origination. In a circumstance where a creator would like to address those who have re-shared without permission or attribution, blockchain-based records provide public proof that the content was posted by a particular user at a particular time. In the future, blockchain-based attribution could come to be recognized by governments for its authenticity and could hold weight in court, which would give content creators greater powers to control their work.
While a timestamping service can be built on almost any blockchain, and several efforts exist to build this kind of service on the Bitcoin network, Steem has a useful advantage in this realm because content publishers are first class citizens -- the Steem blockchain is built from the ground up around the use case of content publication, which allows content creators to have the blockchain to validate their content at a certain point in time simply by writing their post using the same authoring tools used by other Steem users.
I wrote upthread that they aren't doing anything that they couldn't do without a block chain and for one reason that is because their block chain is corporate controlled, so they might as well just use a centralized database server (and eventually they essentially will because DPoS doesn't scale well otherwise).