FYI everyone, Nostr doesn’t allow you to delete notes. Why? In a decentralized social network, once a message is broadcast, it is propagated throughout the network independently by various nodes. There’s no such thing as “deleting” because it isn’t a central server operated by one entity that can just delete the post for everybody (like traditional social media companies). It raises an interesting question of how to maintain privacy in the long-term, especially in cases where sensitive data is knowingly or unknowingly shared. Perhaps Nostr should implement stronger anonymity protections so that a user is fully anonymous besides the content of their posts.

"Relay operators can see the IP address of a nostr user when a user adds and connects to their relay. An IP address is a unique numerical label assigned to every device connected to the internet, and it is used to identify and communicate with that device.

When a user connects to a relay, the relay can see the IP address of that device and use it to track and monitor its activity. Relay operators may use this information for various purposes, such as tracking user behavior, analyzing traffic patterns, and detecting and preventing security threats.

It is important for users to be aware of this, as a user IP address can reveal information about their location and online activity. IP addresses also provide attackers with a direct line to you for attack enumeration and vulnerability profiling.”