Is there a command to block IP addresses from being tracked?

No, if you don’t want to display your IP address, use TOR (or I2P, slightly similar systems).

You can’t ask people to do well to not track you down. When you connect to them they will inevitably see your IP, and there’s nothing you can do to stop them from recording this. When you want to connect to you to other people, you have no choice (have your software) to give them your IP.

The only option is not to use an IP address as a way to identify a node. TOR and I2P are just common ways to achieve just that, but in fact they have drawbacks like increased latency.