I decided to try it (mostly out of curiosity). I did all requested of me and arrived at the 'Success" page, where I was told an email has been sent to me.

Two days later - no email. What now? (on the Q&A page, it says if you refer someone, and the code is added to the link, you must help that person if he has problems. I guess this will be a test of just how effective the intention is :)