What we have to understand is that not all projects in ICO are scams, people who still believe and invest in the ICO project certainly analyze it first, because they also don't want to lose their money.
Faith in the project is not proof that the ICO will end successfully. And the analysis of the project may not yield anything. There are many examples of how a team tries its best to make a quality product, but at some point the team does not find the right solution and stops the project that has already started.