Think of it like the guy who received the letter originally does in fact have IC knowledge of it, and thus sends off a copy of that letter to the skies where it is brought to you, the reviewer's knowledge. Therefore, it is, in fact, an actual copy of the letter as legit as the original, because clicking that link basically means the reporter sends it out ICly. He doesn't know to whom, but hey, messages in a bottle floating out at sea know not what ports they may see.
