As there is no such thing as ROP and advanced trading in Civ2, good relations to other civs is less important but I do care anyway.
What I find unfair is that each AI has a spotless rep even though they have broken treaties on several occasions!
Example: Aztecs, India, Persia and Babylon are all part of a big strategic alliance. The Aztecs and Indians declare war on eachother and fight for numerous turns. I don't know if it was India or the Aztecs that attacked first, but the other allies do not come to the victim's aid.

Nuclear weapons are used. Eventually the war ends, and shortly after that they are strategic allies again!
And about a hundred years later, the same happens again: Aztecs and Indians are all of a sudden at war and not allies. Babylon and Persia do not intervene this time either.
1) AI treaties seems to not be worth anything.
2) Aztec or India or the both of them should have suffered a big reputation hit, but their rep is still spotless. So it seems that reputation is not an issue between AI players. I guess it can be an issue for a human player, but I have too little Civ2 experience to know this.