The problem with this mechanic is that you now have no alternative to punishing an AIs bizarre decision to place a city in between your own cities, to the point where it can only ever have 4 tiles! These sort of maddening decisions force your hand, you have to raze the city as keeping it means it will always be a rubbish city and that isn't fun to me. Which of course means becoming a warmonger for the rest of the game... Unless your lucky enough to get to liberate a city somewhere. The game is so horribly unrealistic in many areas it baffles me how many people keep bringing up realism as the counter argument. Realism does not trump good gameplay.