@FinchHaven @mbbroberg @mosseri
On the other hand, WordPress has implemented bi-directional federation in their new ActivityPub Plugin version 2.0 >>> https://fediversereport.com/wordpress-activitypub-plugin-updates-to-v2-0/
The developer @pfefferle has been accessible and engaged responding to questions and issues.
See also: https://mastodon.online/@mastodonmigration/111733312506415141
FYI: wordpress.com (hosted) sites have the ActivityPub bridge built in. Self hosted WordPress sites have it available through a plug-in: https://wordpress.org/plugins/activitypub/