I want to send people back to the beginning of the document to “play through” as another character, depending on what “ending” they wind up with. (If I allowed a backlink, this would be a spoiler!)
But, more generally, I might want to introduce “incidental” links that aren’t structurally important. There are many places where I say “as discussed in page such-and-such”, but without a link, because otherwise, everything would end up interrelated to everything else.
(This does suggest another question: could Org Roam Server be tweaked to support typed links in the graph? If that was possible, I could filter the graph by link type (x1id, x2id, and so on). That sounds like a fun project for a month of rainy Sundays.)