When your house is on fire, you call the fire department. When the entire town is on fire..... everyone calls. The fire departments gets to map the blaze and find out how big it is. I rather have 100 fire trucks sent out cause 100 people called for 100 fires, then one fire truck to fight 100 fires. And besides, its not like there is one single person calling the fire department over and over. What if..... no one called, they assume their neighbor already did. The fire burns... everything is ash.
True that, except the fire department in this case knows there is a big problem, that the entire town is on fire. Anyone else calling will just tie up emergency lines further and stop trapped/hurt people from finding help just so some hysterical woman on the street can call to tell them the obvious.

Unless NEW information is posted, then people are not helping. In fact people are creating new problems on the already stressed forums.