oh are you new to endless space?

es1 was like this too.

i think the designer wanted craver to be depleter and that why the you get fids bonus as trait but depletion is drawback.  think you are suppose to deplete a planet and move on to other system as craver.

but game mechanics wise , i think they are just gonna ruin all planets in the end unless they get the acension victory and become Endless like themselves(think that is a vcitory option in es1). lol.

And yeah, why the political opinion of captured systems can make the rest of my empire unhappy is some craziness for Cravers. They should be happy for these new feeding grounds, not miserable like a bunch of bleeding hearts marching around shouting "save the fluffy aliens".