As someone concerned about resource usage on Earth, it seems to me that the absolute last thing a super advanced civilization would do would be the galactic equivalent of strip mining or mountain top removal. I would think a civilization would have to develop more wisdom about how it interacts with and uses the natural world to even reach a stage where it could consume resources in that scale, and by then it would know better.
It's actually quite comforting that we didn't seem to find any "type 3" by this definition. If we did, that would be a civilization with no respect for life beyond its own, and thus, would be one to fear.
It's actually quite comforting that we didn't seem to find any "type 3" by this definition. If we did, that would be a civilization with no respect for life beyond its own, and thus, would be one to fear.