Blog posts linking to another article are fine if it includes an actual opinion on the piece and adds to the discussion. A post about a post, that just quotes

Blog posts linking to another article are fine if it includes an actual opinion on the piece and adds to the discussion. A post about a post, that just quotes it and links it, doesn't add anything, so I see no real reason to not link directly to the source? (Not having a go at you, just explaining why I think the source was more relevant in this case).