It is my opinion that people that pass on mis-information on Facebook are advertising their laziness and stupidity. Some people will pass on as fact, anything that is against science or big corporations. I think they blame corporations for all the ills of society. Since medications are produced by big companies, they must be bad. All new advances in technology are the result of research and testing by a large corporation, it must be bad. So don't buy a mobile phone, a new computer, don't go to the doctor, don't buy groceries in a supermarket, and don't do anything that supports large corporation. That way you can show your dis-approval for the 'greedy' corporations.
Every time someone passes on scare stories without taking the time to research the subject they show their laziness. And the worst part is that these people keep the idea going that large corporations are out to cause us damage so they can make money. I ask WHY? How does a large company make money off my illness? Why do people think making their client list sick will make profits?
Two cases come to mind. First MRR and the link to Autism. The person that made the original claim has been proven to be wrong and has now lost his license to practice medicine. The paper that printed the story has now made a full retraction.
Second, Monsanto and GMO foods. The person that started the scare has now published that he was wrong and now finds that GMO crops are the way forward and are safe for both humans and the environment.
If the people that start a rumor now come out and say they were wrong, why does the uneducated mass keep it going? It that the same kinds of crazy thinking that leads to people claiming the earth is still flat? Or killing witches?
I just wish I could post on Facebook "You're showing your stupidity" every time I see a dumb posting.