They want you to spend your money on them. Hershey's is not giving away chocolate. There is no little boy in England who wants your cards. There are no needles in theatre seats with the AIDS virus. Gang members are not driving around after dark with their lights off, picking victims by who flashes their lights.
Nobody can track the progress of an email to see where it is going.
There is no Klingerman virus. Coca-Cola does not dissolve steak, remove rust, degrease engines, loosen bolts, or require hazardous material signs on the transport trucks. Even an inspirational lie is still a lie. So you just got the sweetest story by email. It made you cry and gave you Holy Ghost bumps.