Many projects may look risky, but Bitcoin Interest looks safe. I think that you still need to read more about this project if you invest in it
I do not judge your opinion mate. But for me, Its ok, to take a risk sometimes to know if it's legit or not. So just be careful when investing, Because some members are telling this is connected to unsuccessful ICO that stopped.
The risk will be in the future, if you decide to invest in this coin. But I do not see the risk of getting an extra coin.