Runaway AI+?
That's just what everyone wants.
That's exactly what I want. It's stupid if I meet another continent around 1500 AD and all their Civs have relatively equal scores.
I've taken both quotes as an example.
What becomes obvious by both postings is that we have a multitude of expectations how a game should be allowed to run.
The one wants to go for cultural victory, the other one wants to go for quick domination, the third wants to have a big empire and decide later, for which victory type he's going.
So, any adjustment has to be done with one thing in mind:
Allow as many strategies as possible without making one of them predominant.
In the case of the above quotes, I agree with some nations should have the chance to become dominating a whole continent.
But (and this is a big "but") that's not the whole picture. Talking about continents maps, these dominant nations then have to impose a thread to me, sitting on another continent, too. Otherwise I could just lean back and do, whatever I want to do.
And this now is about balancing: to make these other nations become a thread for me, they should understand the cultural victory, they should understand the diplomatic victory, they should understand the scientific victory, as all three can be achieved without interference between the continents.
And finally they should understand ocean-crossing invasions, as otherwise they don't impose a military threat.
Funny enough, but improving the military component of the AI is expected to make stronger nations even stronger. They have the upper edge in terms of military, and should become good enough to make use of it => they crush the smaller nations => leading to the problems of the previous paragraph.
And that is, why so many experienced players are so dissatisfied with the game in total: you cannot change just this *one* gameplay element and everything becomes fine and good. In the best case by changing just one thing you don't change the overall experience, in the worst case the balance get's completely blown.
It seems to me likely that the developers do intend to redress the balance on the social policies regardless of the current changes.
Once again, this seems to be about balance.
In my view, connecting certain SP trees to "ages" was a horrible idea. Not only, because it isn't plausible in any way, but because it is limiting and leads directly to bee-lining.
The sooner I go to more advanced "ages", the better: I get more from the CS and I do have more options in SP.
In total, I make the options to pick SP's being dependant on my bee-lining. less on cultural growth, and for sure not on having a balanced mix of technologies.
This once more leads to the feeling that it is just a "game", killing immersion.
You don't have to build and grow a balanced empire, you have to run through the techtree in a selective way.
Since the requirements for SP's aren't plausible, but completely artificial anyway, I would propose to disconnect them from "ages", but to make the availability of a new branch being dependant on the number of SP's you would already have acquired.
Say, for unlocking Patronage you would have to have three SP's already, whatever they are.