Some kind of paging function would also be good for mobile devices where RAM is frequently at a high premium.
NodeBB causes not-infrequent browser crashes on my iPad2 on longer threads. When I click a link that takes me to the 60th post in a thread or something, there is a long delay as the slower browser begins by loading the op oldest posts in batches. It would be good if there were a way to make it skip doing that and take me directly to the unread posts (without switching the full application to paged mode).
Perhaps on mobile devices you could add a secondary navigation bar with the paging functions (arrows, "displaying X-Y of Z", etc).