What specific metadata besides time and who you messaged?
Discussion
Who you messaged is NOT part of the metadata, who RECEIVED a message is, the sender is in the wrap.
How many people even know what you're working on? Is it top secret?
not top secret, feel free to share it with the world, rev ~ gonna have two workshops at nostr:npub17yqgpat6e6ensd78jqhj4c3ef03uq04uqu3z05rhjnlk67lwm8wq9w5269 talking about it
for anyone who is curious, the tl;dr is that it's essentially a tool to create secure, private, closed community networks, i.e. think about it as invite only communities. all data is stored on each CCN member's machine, and you can build small applications on top of the CCN to enable all sorts of things (e.g. a forum, a simple tweet client, image sharing, money pools, whatever comes to your mind)