The Wall allows you to post messages (tags) to the chat wall. These messages are fully on-chain, permissionless and permanant. Messages are wrapped as NFTs allowing each message to be fully ownable and verifiable. The Wall also uses ENS to show who users are by their address to allow for easy identification without any centralized accounts. The front end and contracts are all open source. Creators can also create their own sub walls, which allow them to earn from sub fees for people to communicate without any ponzi dynamics.