MTW old boy just started RTW - some questions

[Omanes Alexandrapolites]

I beg to differ on this point, if I remember correctly it is not that much a matter of number of buildings of a different culture but of the ratio between those and the ones of your own culture. Though I have to agree that the governor building has a greater effect than other bulidings.
Or am I mistaken? I think I read this somewhere in a guide, even being a quote of a developer.

I'm positive that it's per different building as opposed to the matter of a ratio. Destroying structures does, for me, make a difference to the penalty.

Joooray is right, sometimes demolishing a single foreign building doesn't reduce the cultural penalty at all.

That may be attributable to the cap that's set on the penalty (50%). If your buildings add up to sixty percent, then you will need to destroy/upgrade two buildings to result in subsequent buildings removing the penalty.

[Joooray]

I'm positive that it's per different building as opposed to the matter of a ratio. Destroying structures does, for me, make a difference to the penalty.

But then again since this also changes the ratio of buildings that wouldn't speak against the ratio thing. :)

I looked up the quote, it is actually from frostbeastegg's guide:

So I conquered this nice little place in Hispania …
Any conquered city will be harder to manage if it is not of the same culture as the new owners; this applies to the non-Roman factions every bit as much as the Romans. There are several things you can do to reduce the culture shock and make the city easier to hold. The first is discussed above: killing/enslaving part of the native population. The fewer people there are in a settlement the easier it is to control. The next most important thing is to destroy or replace as many buildings constructed by a different culture to yours. Each building from a different culture gives a culture penalty. Buildings from the same culture create no unrest, even if you did not construct them yourself.

CA developer JeromeGrasdyke gives a nice explanation of the culture issue here: “Culture penalty has a maximum of 50%. As a general rule of thumb, the amount is determined by the proportion of buildings in the settlement which have been built by factions of your culture - for example, if you're playing the Julii, and you take over a Greek city which is split 50% between buildings built by the Greeks and the Brutii, you should see something like a 25% culture penalty. Then when you replace the buildings built by the Greeks, the culture penalty disappears. Who last built a building-of-governance has a substantial influence as well.”

But well, it doesn't make much a difference in the end. ;)