@smitten oh HTML is not the primary focus here, i’m thinking about it from a knowledge or description view. like RDF or link relations. “A isQuoteOf B” where “isQuoteOf” is currently not meaningfully defined. can it ever be? or is a “quote post” really just 5 or 6 separate semantic considerations in a trenchcoat (context, audience, notification, attachment, preview, and so on)