I have never heard of this either. And I agree that you would get caught eventually. I think most people do not realize that it does not take much for someone to find out about you and what chapter you come from, once you let them know what org., you belong to.(No matter where you are in the world) I remember that my advisor once told us about this young lady who said she was an SGRho. She was a transfer student. They noticed that all of her para was homemade and they thought that was odd. Well to make a long story short, when they started to investigate they found out that she was denied membership into SGRho at her former university. So it pays to just be on the up and up. And why would you want to be in multiple orgs., or claim to be something you are not is beyond me.
Just my 22 cents !