There should always be an option to paginate. As others have said, the user-hostility is significant on any infinite scroll — one side-product of this is the r

There should always be an option to paginate. As others have said, the user-hostility is significant on any infinite scroll — one side-product of this is the refusal of apps/sites such as Twitter (sometimes) or Facebook to stay where the user left off, reloading the page when the app or page is returned to. (One other truly hostile aspect of such sites: the user's choice of display order, especially on Twitter, is rarely respected, returning always to what the site believes to be most advantageous to itself. User settings should never be changed remotely, or without user approval.)