i still don't understand what they are trying to create though! anything they make will be a centralized way of using the blockhcain technology and because of that it will have a low quality and value. it will be basically the same database that Facebook is already using..... correct me if i am wrong.
Even I have the same thought here. Facebook won't be creating something radically different server architecture from what they are using now. Also they won't be doing anything decentralized. Probably they will be implementing the blockchain technology to safeguard their data integrity and reduce data theft risks.
But it is too early to say anything. Since the announcement just cane yesterday that they will start exploring the blockchain. So we don't know what their thinking process is and what they are trying to implement. I am just happy that finally big corporates are realizing the power of blockchain.
FB has everything to develop a peer-to-peer payment system. They have the database, they have the connections between the parties, they know a lot about people, I can see no reason why they won't try to integrate a digital fiat based payment system into their system. Blockchain is needed to automatize and secure the system, so that can be the reason why they are thinking about it. But if I'm right, if they announce that they are thinking about something, in the background, most of the decisions are already been done and the development has been already started, but this is only my point of view.
Just have a look at China, their chat app has already taken away the interpersonal small money transactions from the banks and people are sending small amount via the app....