Most scammed ICO's didnt want to know there identity and who's the team or people behind of the project. They dont have proper white paper, websites and etc. And about buying much better to buy coins with exchange already to make your investment safe and all you have to do is just monitor only if the coin bought either increasing or decreasing its prices. Differ from investing in new ICO's,  doing ICO's is the stage of promoting their coins to the market and there a possible of failure on it and your investment also gone or remain but in trash prices.