sonicmyst
Emperor
There are several things to prevent conquered cities from flipping:
- Governors.
- Planning conquest near your cities (will not work if you start conquering on another continent, though).
- Cultural alliances with nearby civs, so their loyalty don't interfere.
- Global sources of Amenities (Luxury resources).
- Local sources of Amenities (i.e. specific Policy Cards, like Retainers).
Overall it's manageable, but needs planning. If it works like this, it should be great.
I also would like to think that hitting a Golden Era is also a good opportunity to expand / conquer. Combine it with proper governor placement, there should be no big issue with negative loyalties.