Just a heads up, but the getting 500 coins part for using a referral link may no longer be true, I did get 100 coins for confirming my email address though. I hope you get credit! It doesn't have to be win-win, but one win would be nice. :)
Despite clicking on your link it didn't automatically insert your name, though it did recognize you when manually entered.
Interesting experiment that may be fuel for future blog posts if nothing else. Thanks for the info, be badass if it turns into something!