It’s the technology behind it, the blockchain is a public ledger, I’ts a distributed system where everyone can participate, being a whiteness means that you help to secure the network and provide the bandwith. Your password is also your adress where you get paid, thats how most cryptocurencies work, every transaction is public and here your adress is chained to your blog. There are some anonymous cryptocurency out there, so maybe one day it would be able to make the wallet anonymous but you won’t be able to delete posts after a while, those posts represent transactions and you get your money. Then you sell that money and you want to delete that post. How are you supossed to give that money back if you don’t have it anymore?