i think there are no good or bad ICO's , it only depends on how the ICO runs its project. If its succeed in the end . Too many ICO's have been running this day , most of them or 80% of those ICO's are fake oe scams , only the 20% of those ICO's are not scams. If you want to invest in an ICO you should start reading its whitepaper , roadmap if its interest you and you think that ICO has a great or big future you can invest on it.