It's not always that easy (believe me I've tried). Sometimes the main people in the story (for example, the creator of the RP almost always has the most vital character) are too busy o simply unwilling to come back. It's kind of like that whole "Once you've had the best, everything else becomes the worst" kind of thing. Speaking for myself, when I've RPed with someone amazing, I find it hard to try to do the same RP with someone less amazing (that sounds mean but it's true). It is heartbreaking, though, to see so many dead RPs. And infinitely più heartbreaking when an RP that you're a part of dies.