The Washington Post:
The greatest threat in the Marvel Cinematic Universe is Thanos, a powerful warlord who obliterated half of all life in the universe by snapping his fingers. But among the greatest threats to the Marvel Cinematic Universe, in the eyes of those who created it, is anyone who spoils even the smallest of plot details.
That makes the “Avengers: Endgame” footage that leaked earlier this week almost as terrible as that Thanos snap, as far as spoilers go. While they didn’t respond directly to the leak, directors Joe and Anthony Russo tweeted a letter to fans Tuesday, with the hashtag #DontSpoilTheEndgame, imploring viewers not to give anything away after the movie hits theaters next week.
I honestly don’t get this need to broadcast the spoilers. Why consciously ruin the movie for other fans?