I think the imortant difference to email here is that communication is open to everyone, not person to person. This creates the need for moderation and selection.

You install an RSS reader app on your phone or computer and subscribe to the feed links. Those contain some metadata for each story and a link to the content. The RSS reader will display everything in a readable way.

At least the first one even has a co-op multiplayer mode. I wish there were more metroidvanias doing that.