[scottydelta]

Well a good way to troll. You send an image to someone in the email and then change the image once the person forwards this email to others.

[fudged71]

not just trolling but could also be used for social engineering...

[Herrera]

You are right. You receive one image containing a inspirational message for your family and decide to send to your family members. Then it changes to a image asking for money to be sent to an account because you are in need. I could see this working.