Comment by StevenRayOrr

Given that we're just talking HTML, I don't see how you could meaningfully prevent bad actors, absent storing screenshots of the original text -- and even then (see any number of fake tweets that circulate). Hypothetically, instead of linking to the original source, I suppose it could link to the Wayback Machine version of the text, but I don't think that's a helpful default way to link to people's work. As a fallback when sites disappear, sure, but otherwise...