This has been bothering me since I joined E2, so I'll just say it:
One doesn't rescue nodeshells; one destroys nodeshells.
It shouldn't be called nodeshell rescue, it should be called nodeshell destruction, because the nodeshell, by its metamorphosis into a node, is being destroyed. The nodeshell was once there, somebody fills it up, hence destroying it, and calls it a 'rescue'.
It is like calling making a hamburger from a cow "cow rescue".