Usually, those hype doesn't last long. If you remember ICO projects before, they have been very famous too but got some failures afterwards. I can also see YI series projects like that. Today, they are making a big noise and investors are enjoying this opportunity to gain and to earn. But you have a point, there is possibly a bounce down and investors should be cautious on this part..
 
 Anything new in crypto world, can be a hype in a certain period of time. And also be a new door of oppotunity for scammers so let's take our actions be wary.