It's hard to say that coz they are everywhere, and that's right that scammers is one that we need to eliminate in this kind of field so that it's going to be smooth for us without any fear that we will lose our money, and the hesitation to invest is going to be firm.
Scams like scourge are frightening for investors, sometimes people are reluctant to invest because they are afraid of being hit by a scam, it is a natural thing. so it's better before you try to invest, first understand where successful and potential projects or ico, you can see the track record and you also have to see which ico is a scam, so you can know the difference..