No one really knows when investing whether it will turn out greate, and let no one tell you otherwise. What we all do is speculate and guess to see which coin is most likely not to come back and bite us.
I would say that if you buy shilled coins, then you can run into such conclusions. It's also lazy and careless. Do your own research. You just need to basically check two things for a solid coin. One is a good team. Two is a coin with a future/purpose. With those two, you can definitely be positive that what you have there is a good coin to invest in. Check out #Mevu.