It's true that the provenance of an article sometimes leads to complaints, but I don't think we should let that be the high-order bit or train for it (in the way that repeated moderation decisions slowly train the community). This is one of those cases where knowing what you're optimizing for shows which side of a tradeoff to opt for (https://hn.algolia.com/?dateRange=all&page=0&prefix=true&sor...).
(* when it's publicly available - that's an implicit bit)