Like any get-rich-quick scheme, bitcoin scams thrive on the gullibility of its victims. Just because it's a digital currency doesn't mean you can acquire wealth quickly.
We cannot control scammers but we can skip with them and aside from that they eventually appear easily and scam people without hesitation. That would be unfair to our part but they are aggresive enough to do that thing. They get rich but they step other people maybe their rich will disappear quickly. Digital currency is a future of everyone we need to be honest to become successful.