I'm not a fan of the referral system. The words "referral system" only bring up images in people's head of some guy in 3rd world Asia trying to get you to click on a sketchy link to earn five cents, which he can do two billion more times until he has enough money to buy an iPhone. This probably falls under my reference to cocaine induced features/changes in the original post.
Whoever creates something probably won't even benefit from the referral system. It will be some guy with an army of zombie bots that spams people....
This will either put you in the viewpont camp of "There's no such thing as bad publicity!", or "Bitshares will now be known as the new, annoying AOL CD, forcibly given to anyone walking down the street, inducing extreme rage at it's sight".