lol... I agree its great to know that, I am getting a better idea of diplomacy by playing a game real slow and noting down all the dip in a spreadsheet, only up to turn 70 but some things are clear.
For example the Civs if disturbed from normal duty will change government, if you ever see them switch to Autocracy they are gearing up for war, very handy to know.
The whole friends thing and friends with an enemy is an interesting dynamic and suddenly they will fall out of friendship so you het get the freinds with enemy modifier but overall the +9 for 30 turns is powerful.
Its also clear that that +3 for a delegation lives with you for the whole game providing a positive buffer from the start... which helps on deity no end.
Warmonger I have only done in the classical era so far... -2 warmonger for taking a city... lol it degrades 1 point per 2 turns including while still at war... although the very start of the degradation seems to be a point a turn.. All warmongering degrades from the point of occurrence by the look of it.
My joint war with Monty shows that Monty did not have any warmongering feeling toward me. As soon as the joint war finished and I took a city off Kongo Monty went -2 for warmonger (no big deal as I am +28 with him overall)
Joint war +5 has not degraded yet, it may be a 30 turns ting which is awesome, get a hoint war done early and get good value for 150 turns.
I noticed this game that Egypt judges your military based on hers, so at the start she laughed at my military but when Kongo attacked her she started liking my military, Quiet a useful feature to remember.
With Monty he clearly has a city states secondary and as I was behind he gave me +12 for this... I am holding back on envoy civics as I am enjoying the popularity
The Joint war declaration against Kongo with Monty gave me a -6 warmonger in the classical era which degraded with everyone by the time the war finished. It shows that small targeted wars can be useful and not damaging.
Currently met 5 civs, just went peace with Kongo at -28 dip points (he does not like my science -6 as well as the -18 for having a city) The other 4 civs are all friendly with 3 within Ally range if I had the civic. Really quite an eye opener of a game but its sooo slow