> For instance, unique usernames are impossible without a centralized username registry.
This is Zooko's triangle and was squared by blockchains. Namecoin (2011), BNS (the Blockstack Name System, 2014), and now a bunch of other fully-decentralized naming systems can give you unique usernames. Recently, Ethereum tried launching ENS and ran into some security issues and will likely re-launch soon.
This is Zooko's triangle and was squared by blockchains. Namecoin (2011), BNS (the Blockstack Name System, 2014), and now a bunch of other fully-decentralized naming systems can give you unique usernames. Recently, Ethereum tried launching ENS and ran into some security issues and will likely re-launch soon.