I had been scammed once that's why I am not into investing. The trauma I get by scamming the money I earned manually through faucets and mining were scammed by a Nigerian that offers binary trading in some website that he recommended onto me in facebook.
Fortunately I haven't been scammed ever since then. And it's just sad to hear stories like that when people get scammed by those who use the name of bitcoin for scamming. I've heard stories about that. That's why let's always be careful. Study well, invest smart so less people could be victimized by these scammers.