Using the settler to make new cities right on the edge of enemy territory, using workers to make railroads, and thereby getting deeper into enemy territory without expending movement points.
I didn't think this was an "exploit." Any more than capturing a huge enemy city chock full of resistors, sending one of my home-grown settlers to the city, THEN disbanding the city, and then refounding one on the rubble with my settler all in the same turn.
I didn't think this was an "exploit." Any more than capturing a huge enemy city chock full of resistors, sending one of my home-grown settlers to the city, THEN disbanding the city, and then refounding one on the rubble with my settler all in the same turn.