Robin should return money that he owes to investors with interest that was decided at the time of borrowing as soon as possible. He's trying to use the borrowed btc to trade on localbitcoins. People unaware of this are buying the scammed bitcoins and becoming a part of his scam routine. So he should be negatively rated for this act on the LBC platform. This is to safeguard the community for possible police inquiry since If a police complaint is lodged, all the persons to whom he sent money or from whom he received money may possibly be investigated by the police.