You know in russian people have a saying : Let`s not be splitting the skin of an unkilled bear. So let`s not be splitting something we don`t have (YET) , until we have it. Even then, I think we will think of better ways of invest this money then just putting it in our pockets.
I think the problem with refferal links could be solved this way :
If a person wants to post a refferral link in his signature, I think he just could do it, but only on one condition, he has to note that this is a refferal link. We should think of some mark for it , somethink like (ref) , and explain it in the rules .
What do you think ?