Just recently found RFC. Played a few games (BTS, with Vanilla RFC). Current as Arabia - huge modern empire, question on civics as they relate to empire stability. I have read all the strategy from wayback archive from rhye.civfanatics.com.
Obviously the stability is malleable -- I brought my cities ranking from 2 to 5 stars just by building jails everywhere after reading that at rhye.civfanatics.com and my economy is steadily growing. Presumably expansion is stuck at 1 star because I am so far out of the historical stability maps...and thus it is important I maximize the stability from civics and diplo.
Civics: have had > 20 turns with all modern with US/FS/Emanc/FR, FM, and resettlement. But my stability civic is stuck at 2 stars???
Is it that Arabia doesn't like the modern civics, or does Free Market, not having commonwealth have that big of an effect?
How about the diplo ranking? Also stuck at 2 stars

I purposefully gave money and techs to make rivals like me, out of 9 rivals have 4 friendly and 2 pleased, and per instructions signed 2 defensive pacts and OB with all except 2.