Uhmmm..... how do you know? If there are out there, maybe they got to be that way by destroying everything in their path? Or like the 4th of July movie. Just caus it's on top doesn't mean it's nice and friendly or warm and fuzy.... mother nature isn't like that, so why should anything else be? Eat or be eaten. Why should the food chain thing be any different out in space?
But anyway I don't care to waste my bucks on seti either. I sent my letter to the big dump in the ethercloud.