Learning about the ZK3 project from the Privacy & Scaling Explorations team at EF, built on top of Semaphore groups & identities and @lensprotocol - it's a great example of how a user can prove they are part of a social group without revealing their identity. Could be useful for brands<>audience for a member to prove they are a supporter of said brand while remaining private and not feeling like they're revealing their data. I love seeing new and interesting things built on top of Semaphore and Lens