actual smart or just hustlers? It is a scam. Yes, you can make money from it. But are you ok with ripping people off? Because the only way to make a gain with any coin is to force the next bigger fool to sit on a bigger loss. They might not have realized it but it's there. All of these made up usages are just there to trick people to buy your coin at an elevated price -- but there's still no uses of coins which have a real world use case and couldn't be better done with a centralized database (or sometimes git). I just wrote up in a top comment that when tech does deliver something real it needs no explanation or these discussions: https://news.ycombinator.com/item?id=29951993
You also can take a very lucrative job at Facebook. It might be interesting tech too. I refused one this week.
Do not think us stupid for having a conscience.