This is an interesting point. And I have to admit that I am also incurring in this excessive overconfidence. But actually at this point I don't know what to believe, because in this virtual economy everything is possible and in the long run I am convinced that 90% of current bitcoin-based websites will become scam.
The possibility could have happened, because the world is growing all of the technology very well. So the bitcoin also has the same potential (scam), whether it's from the original owner of the bitcoin suddenly came and did a fairly strict regulation or other things.
scam is occur everywhere not only on bitcoin only dumb saying scam is because of bitcoin not because of the individuals