You are right , Probably most of the ICOs results into profit but needed to wait for long time for limit sell .
Here the main thing is that few of the ICOs results into scam only , as already I faced , so we needed to investigate the ICOs project throughout otherwise we will face such types of scam and loss again and again .
First of all we should see toward the activity of the team of the ICO , whether they are active at every social media platform or not and if available then what types of information they are sharing and what types of the reaction they are getting , abusive or better According to people's understanding and opinion regarding the ICOs , and we should go with the majority of the the ICOs reviews at social media .
And also we should see that at what platform the ICOs project are advertising their project , which will show directly that the ICOs is what type legitimate or not , or they are just running advertisement at social media for the making money only.