I'm not sure if anyone has noticed, but if Forgotten take a city with science improvements, they continue to pay upkeep on them. I have not checked but I would guess the Broken Lords do this with agricultural buildings. You can deal with this by going in and manual removing all these buildings, but it is, frankly, lame.



Please consider making this automatic.



As an aside, it brings to mind potential Dust rewards for dismantling buildings specially for Forgotten vs science buildings... which seems very "canon" and might be a good light buff.