This is missing the forest for the chirping birds. Of course a message can be useful: in times of fear, people want reassurance. That's probably why (as another

This is missing the forest for the chirping birds. Of course a message can be useful: in times of fear, people want reassurance. That's probably why (as another top-level comment mentions) the top reactions ever on Twitter are after terror incidents. As for how Twitter should be used, it's a communication medium. People can use it however they seem fit. Would it seem more important if the message came via telegraph, telegram, telephone? History adapted to all of those as well. "Sighted ship, sunk same", "WAR", the Zimmerman Telegram, etc.