The part where enemies drop scrap on death is neat, but I think I've run into enough issues to want to disable it. I primarily end up with large pools of scrap out in the oil ocean that is not being picked up. I can send robots out there, but the lightning storms usually kill more robots than the scrap is worth. I can also go manually visit the planet and walk around scooping up a bunch, but that requires visiting.
Additionally worried about performance issues with the amount that's building up. I don't know if the engine does anything to optimize runtime for them, but I would expect these to at least add to the file size of the save.