WordPress made a big splash with this recent announcement: follow blogs and comment on posts on Fediverse platforms which will be synchronized as post comments. Engage a Wider Audience With ActivityPub on WordPress.com – WordPress.com News
Ghost + ActivityPub could solve a discovery problem that the directory Explore — Browse publications & featured writers presents: the potential audience lives by default on another platform and their timeline.
Unless Ghost expands the directory with an editorial layer (see Bandcamp daily for example) Ghost blogs will remain lone islands.
I really like to know if Ghost does consider ActivityPub as an optional feature in the future or if they rule it out from a strategic point of view.