[Okay, not the most tactful way to go about that. He's never really been good at breaking bad news.]

The Vast Glub took out all of the trolls in the galaxy as far as we know, save the twelve that were in their game at the time. And even then, there's only a small fraction of those 12 left alive thanks to a few of them going a little off the deep end in confined space. At least that's how it was for my troll friend.