While a List may come to an end, if all Lists die (and stay dead), that’s a sufficient condition for the site to be considered dead.
That’s not to say the site would be dead if there stopped being new posts for a time—if people started revising their posts, and submitting those changes, discussion of ideas (and the life of the site) could continue—but then the currently existing posts would “living lists” while “all posts” would be dead.
While a List may come to an end, if all Lists die (and stay dead), that’s a sufficient condition for the site to be considered dead.
That’s not to say the site would be dead if there stopped being new posts for a time—if people started revising their posts, and submitting those changes, discussion of ideas (and the life of the site) could continue—but then the currently existing posts would “living lists” while “all posts” would be dead.