I will share my way of knowing whether an ICO is responsible or just a scam. I will make an analysis of the selected ICO by showing the advantages and disadvantages of the ICO, the opportunity for the ICO to succeed, and the threats faced by the ICO. The analysis contains what the ICO's objectives are realistic, how the ICO road map is, and also who the team works within the ICO. This simple way that I usually do. Hope you can help.