We're working on a blockchain project and we're planning to launch initial coin offering soon. I have some questions about it. What do you think about refundable ICOs? We've developed a smart contract which refunds if ICO won't reach the soft cap target. However, there is a limitation about it. The project can only accept stable coins such as USDT, USDC if we choose the refundable way. Otherwise, we can accept all other coins. Do you think it's worth it and would you invest projects like this?