Your link to Dansup reminds me of the Wordpress ActivityPub plugins available these last couple years. Similar to this person, I’ve been running them on my own Wordpress since they began: ActivityPub plugin and the now fairly inactive Pterotype.
Your site is turned into an actor on the fediverse, such as @latest@meta.discourse.org, you can add a description for your account, and your site icon is displayed as your federated user profile pic. Posts will show up in the federation for other users and their comments will show up on our site, displaying their federated user icon and name.
Example reply:
@doug@mastodoon.social:
I've really enjoyed following this thread on federation! Keep up the good work
Really nice because it is displayed on wordpress as just another comment, when it is also a true federated comment as well via ActivityPub.
edit: Check out Prismo, which a federated variation of Lemmy/Reddit built on Ruby / PostgreSQL that might more closely align with a design for Discourse