Earlier quoted context omitted.
I'm excited about ActivityPub integration in blogs. You can give your site its own Mastodon ("Twitter") account, articles show up as posts and replies show up as comment threads.
The one thing I've been frustrated with using ActivityPub for blogs is that it is push based instead of get based like RSS. Basically it means that the responsibility is on the website owner to send out notifications for new content and maintain a database of subscribers instead of just publishing a feed that people can periodically download to check for new stuff.
There is also AP relays which could further reduce the overhead if you simply deliver the content to the relay.