....
Looking forward to this question too
It looks like there is no need to block tokens, this is a program to support the network.
There is a technical question - as I understand it, the port for exchanging with the network can change. For example, I have a network behind a firewall, where the rule works - "everything that is clearly not allowed is prohibited." The question is - which port forwarding do I need to do on the router so that the node can interact with the network?