We have discussed this topic time without number, as for now there is nobody regulating ICO and that is why scammers number is increasing everyday in crypto. My advice for everyone in the business just have to be careful when investing in ICO.
Regulating ICO might be the solution to reduce scam which I think the US SEC ought to have done by now when they make statement about it but there must a tangible reason why they choose not to implement it again and I believed the disadvantage of the regulation is what make them withheld it as at now.