The system of that CC for deposits could be good that Stacker News is not wallet for sending and receiving invoices but focus on tipping posts and get rewarded in CC or satoshis if attached a wallet. But there is a crucial point the CC that you have earned could be withdrawan means if you receive 100 CC you could redeem 100 CC for 70 satoshis. Means split into two balance. CC is for tipping and withdrawable CC where 1 CC for 0,7 satoshis those you received for someone tipping your content in CC.