This is an interesting thing, but too complicated and over-broad for the mere-mortal. It should be enough to just provide an RSS/Atom feed. WRT comments, well, I never want them on my website anyways, because <i>my</i> blog is for <i>my</i> content. If anybody's interested enough in responding me, they can write an email or another blog post. If I really want comments on a particular post, I post it to HN and/or Reddit.<p>Anything other than the pages, the feed and a mailto: link is just unnecessary IMHO. If I want a federated social media, no need for implementing and maintaining al this burden, there's Mastodon.