All of the risks you listed do exist but there is no escape from them.Im not afraid to take risks when investing. The only embarrassing moment when investing is fraudulent projects. Recently, fraudsters have learned to disguise themselves well. Im sure that as soon as algorithms are created that exclude completely fraudsters the investment climate will improve.
Every ICO contain risk there's nothing in world that provide you money without taking any risk. Its just a part of our life we have to step in in order to make money.