If Osama was a piece of Ass, Clinton would have nailed him.
That sign became famous when a photo of Doctor Raoul holding that sign was in one of those emails that gets forwarded from everybody to everybody. The email also made Raoul famous outside the FReeper community.
(The Doctor of FReep was already famous on FR for some of the most brilliant, entertaining, and audacious FReeps.)
During at least one FReep a police officer has recognized Raoul from the email and broke out laughing when discussing the sign.
I think he told me that abner made the sign.