Okay, I am confused. How on earth can a ghost be "destroyed" and what exactly happened to Trent, Stevie, Nick, and all the other ghosts Donna ate. I mean when Donna ate Sally, Sally was somehow able to kill Donna from the inside causing her to be released fully intact, and during this time, she was no different than any other ghost (i.e. [spoiler]she didn't have her witch powers yet[/spoiler]). Isn't it possible that when Donna exploded they got released, revived or whatever just like Sally did. After all that's usually what happens in tv when an otherworldly, soul eating, entity dies, All the souls they ate usually get released.