Why doesn't Keychat directly support relay-based unencrypted groups in Chat?
Large-scale public groups without end-to-end encryption are a different type of application, similar to Discord or forums with a chat interface.
Keychat is designed for small-scale, end-to-end encrypted private groups, where most members are friends rather than strangers.
Therefore, Keychat will indirectly support relay-based groups instead of mixing them with encrypted groups, which would cause confusion.