Lucifer, you are correct. Cabin Crew, Pax, ground staff, journos; you name them, they think they have a better grasp of the overall situation! (And just to be fair, they may often have one snippet of info which could be needed by the Flight Deck for a better decision to be taken. But never the whole picture, how could they?)
Imagine if surgeons had a professional forum open to the public. Every opinionated person who had ever had an operation would be shooting from the hip, with their ill-informed views. Same stuff here, sadly.
Keep the punters out, I say!