I have real problem with AI empires just up and surrendering all the time. This saps a lot of the fun from the game. It doesn't even take much for the AI to surrender. Just the loss of a few planets. It completely erases any chance for the AI empire to make a comeback.
Many times I will be just starting to support a losing empire with ships and they just up and surrender.
While I do like that surrendering is in the game and it should happen sometimes, it shouldn't happen all the time.
Is there a way to adjust the frequency with which the AI empires surrender?