In investment, there is always a more significant risk and risk, bringing more profits to investors. Should not evaluate all failed ICO is Scam. Because if all the ICOs are successful, it is impossible. Money needs to circulate, and liquidity is the decisive factor for a project's success.
there are many factors that can make the ICO fail so we don't need to panic if we see that there are many ICOs that fail or scam.
and we cannot say that all failed ICOs are fraudulent because there are many things that can make the ICO fail even though the team has done everything.