Different workplace cultures. Just like putting in academic citations on a clickbait site would be inappropriate vs not properly citing academic papers at uni

Different workplace cultures. Just like putting in academic citations on a clickbait site would be inappropriate vs not properly citing academic papers at uni is technically plagiarism. Its also for defense programming or documentation. "Why did you do that to that matrix to stabilize it?" "Well that is right out of Prof Higham's paper about nearest correlation matrices see this link in the comments, its not like I'm just making that stuff up as I go along". Also comes in handy for legal review. "Wait, thanks for the flattery but you can't copyright that, that algo is copied right out of Knuth, it was invented 50 years ago."