Are comments from other platforms supposed to appear beneath blog posts like that? I suppose it depends on how WordPress has implemented their federation. If it is supposed to work, it might also depend on how often WordPress pulls in information from other sources; I wonder what their default federation settings are? Does a blog automatically federate everywhere? Or would they have a more allow-list model to prevent comment sections becoming a moderation nightmare for blog authors?

I suppose I should look this up 😇

EDIT: “and, in turn, receive replies from those platforms that are transformed into blog comments.”

So it might be a matter of how often that blog’s “cron” tasks run (background processing that runs on a timer), and perhaps if the blog author allows comments (from the fediverse and otherwise) and if they have to manually approve them before they display.