OK, new idea.
Starting at war with another civ is IMO useless for the human player.
I do agree that if a newborn civ is AI, then some civs should have a chance for war on spawn to help make things more historical. However, maybe this is just me, but I usually play to be pretty historic, so I don't need automatic war with nearby civs. Another thing this prevents is getting a DOW on turn 2 when cities flip - therefore no extra units.
So, I propose implimentation of a new rule that prevents automatic war on spawn if the newborn civ is human.
The way I see it: either have one or the other (either chance for war on spawn or chance for war on city flip,) not both. Of course, I would prefer the second option, because then you still get the extra units for liberation.
Does anyone else agree?