pfefferle, 
We just released version 1.3.0 of the #ActivityPub plugin for #WordPress
https://wordpress.org/plugins/activitypub/
The WordPress.com release is in preparation!
Main new feature: Threaded Comments 😍
Here is a nice example: https://notiz.blog/2023/12/04/sidebar/#comments
Thanks to everyone who was involved!
https://github.com/Automattic/wordpress-activitypub/releases/tag/1.3.0