Well, I can view the incentive for the goob to encourage more people to do this throughout the coming months. Such action would certainly reduce the ridiculous amount of FRN's that have been printed previously.
I had heard that it is relatively easy to remove the magnetic strip from bills via a steady hand and a safety pin. Of course, I would never try such a thing but I believe there are YouTube videos about said subject.
"An error does not become a mistake until you refuse to correct it".
-JFK 4/27/61 at the Waldorf Astoria to the Press