Matthias Pfefferle, on WordPress.com News:
ActivityPub is a WordPress plugin that facilitates seamless integration between your blog and a host of federated platforms, including Mastodon, Pleroma, Friendica, and more. This plugin empowers your readers to follow your blog posts on these platforms.
In addition, replies to your posts from these platforms are automatically turned into comments on your WordPress blog, creating a more interactive and dynamic conversation around your content. Synchronicity for the win!
This is really cool. Specially the second part: the ability to channel replyβs as comments is something that would have been a killer Twitter feature back in the day.
Iβm glad this is out. Specially with rumors that Tumblr ActivityPub integration is shelved. Not sure Iβd use it in Wordpress, but will have it enabled in an instant on blot.im.