I think action speaks more than words,no one wants to lose money to scam projects anymore so they are forced to learn how to spot good projects to invest in.
It already came from you. Losing money because of failed ICOs will lead to one's detestations. Until now, it proves that ICO are still continuing to grow and that means that they are still surviving. But people are smart now, they wouldn't invest in a project that are unsure if they will benefits.
Yes, many investors have learned to distinguish companies, the percentage of scam remains, of course, but in general projects still continue to raise funds, and almost every day a new coin appears on the market, as well as on exchanges.