EDIT: If transparent mining reveals the node's ability to forge, there's also the incentive to bring down large holders to improve your own forging income.
how about this?
This reminded me...
From
https://en.wikipedia.org/wiki/Laconic_phrase:
After invading Greece and receiving the submission of other key city-states, Philip II of Macedon sent a message to Sparta: "If I win this war, you will be slaves forever." In another version, he warned: "You are advised to submit without further delay, for if I bring my army into your land, I will destroy your farms, slay your people, and raze your city." According to both accounts, the Spartan ephors replied with one word: "If" (αἴκα).
PS:
There is no way to find IP of a forging node if it wants to hide the address.