It is like this everywhere else it is not new to crypto we have had scammers the world over for centuries. Back when we traded sheep and cows we had scammers. It is the same thing just a different platform of doing it. Though exchanges are not scams but I wouldn't go putting to much money in a lesser known exchange. Then you get the hacks and all that but there are exchanges that put aside bitcoin if this happens and those are the exchanges we should be using and supporting. Transparency is good.
Right about everything but the exchanges, I don't consider Criptsy a lesser known exchange.