It’s good the spec already addresses this problem. I’d like to see some more in depth access to things like the coin list (so we can choose to spend coins based upon who sent them to us, etc) and the client list. For example, all of my computers at home -connect to my router, which runs (but does not generate) with port 8333 open.
I wish there were some way to prioritize network traffic to my own local nodes over remote nodes.