I think I noticed already

.
I just don't care

.
I am sure that people are going to whine that the only way to stop an AI cultural victory is to conquer them. Thus they need to war more. And the only way to survive an attack from an aggressive AI is to build a massive army, = more war.
And I would just ask, to everyone who complains about this sort of thing: WHAT THE HECK DO YOU WANT THE AI'S TO DO!?
Listen. As far as I'm concerned, it'd be like complaining "I usually lose in multiplayer ffa games, it's not fair!". Well, in a 4 player FFA game, the average player loses 75% of the time.
Why the heck do you want to win against the AI every single time?
Will you let an AI you are friendly with win? Are you willing to hang off an AI's coattails? Or do you have to steal their glory? Do you have to rain on their parade?
You Humans are TOO DAMN OBSESSED WITH WINNING.
I am however considering tweaking the diplomatic modifiers, possibly removing the aggressive AI human-diplomacy penalty (just making them more generally aggressive) and I've already removed some "isHuman" stuff from the AI decision making (like if AI Alexander is able to come knocking with a bazillion units it makes no sense to treat him as less of a military threat than a human).
On the whole though I think it's the Humans who need an Attitude Adjustment!