I don't understand how your conclusions were reached from my post.

My blog's content is natively shown inline with other content on Pleroma. To a Pleroma user, it and responses seem like all other native posts and interactions. They can click its ID to go through to my original blog. There, everyone sees my blog and its style, as well as the same responses as native comments. Back on Pleroma, those users can boost it and share it with others (their followers). Virality achieved. No further engineering needed from me to enable that.

That's federated social networking. Imagine writing a YouTube comment from Twitter's interface and your Twitter account. In this case, my blog's content -- not just links -- natively pops up in followers' feeds when I publish something. And since ActivityPub is built on and compatible with RDF, this could be extended to all sorts of domains and interactions.