At present, some issues that exist in the ICO are quite complex, there are quite a few ICO projects that exist anonymously and deceive users, some members involved in the ICO program always seek to deceive us. So we should be careful, do not let them cheat
There're various issues when it comes to ICO most notably there're very fee trust worth ico's others are made to scam users, and because of these miscreants ICO industry has taken a beating. I have personally seen all scam type of Ico's which makes me avoid even the legit ones if they show up, the entire industry of Ico's has been tarnished and till they don't make their workings mor transparent users shall not trust them with their money.
Due to scams ICO reputation it do really give out tarnish which in result it do make lots of investors confidence on making investment or support into projects and legit ones is mainly affected due to lots of scam projects.
We have seen the difference of success rate of projects on last years and of this year. Lots of garbage projects and only a few legit ones but still failed up because of that effect.
Evolution of ico market is just beginning. cryptocurrencies are just entering our life. Strong will remain, weak will go into oblivion. First three years are not at all an indicator of a decline in interest in ICO.