One Bitcoin Club's UI. There you see the various tiers for the amount of BTC held in your wallet.In response @alonicus / @shanibeer, I would simply point out what you see at the top of the header on
My understanding is this has something to do with the rewards earned. My best source of information and understanding comes from experiencing it firsthand, however. So far, I have not been able to successfully log-in.
So, @starkerz is a better source of information, to answer this question for certain. Until then, I hope this one helps a little bit.