I remember world 2, where I would have farms send me 80% of their resources and not be my farms anymore. Saved me time and the odd losses of Axes/LC. I was able to blackmail hundreds of villages. If I was actively farming every village I blackmailed, It would take me an entire day to send out one wave of attacks. Good times.
*nods* it's a policy I tried to use on a few of my farms and they said they couldn't I was very annoyed. then they became inactive because I kept killing their troops and farming them. In the end it hurt both my resource income AND my nobling targets.