When I asked GPT-4.1 to show some references to confirm an answer was as widely accepted as it claimed, it replied with a bunch of unrelated GitHub issues with fake descriptions, and this Stack Overflow link: https://stackoverflow.com/questions/74985713/fastifypluginas.... Turns out this is actually a link to a completely unrelated question https://stackoverflow.com/questions/74985713/plotting-a-3d-v.... It had tricked me by rewriting the title part of the url, which is not used to identify the question.