This is basically a request to merge the functionality of https://www.drupal.org/project/views_content_cache into core views:
This module implements a views cache plugin that is aware of content and can provide caching for views, until the content in those views changes.
Drupal 8 Drupal 8 has this functionality essentially baked into core, so there isn't a need for this module if your site is running Drupal 8.
GitHub Issue #:
3399
Recent comments
This may be overkill, but the module print contains an option to email the page as well, I believe. I'm not sure if its working in its Backdrop's version. https://github.com/backdrop-...
Forward/email this page ?
Yes, this may be tricky. It's however easy to get comment data in a Content view: After adding the Relationship "Comments of the node" you will be able to choose fields like "Comment: Post date...
User activity
Thank you very much! Looks great! A probably tricky add-on: Is it possible to also display new comments within this view? I mean not as a separate block or extra view, but directly...
User activity