Right, I agree! That is reason to understand the overall explanation of ICOs from the understanding of reading whitepapers, getting to know the ICO team, and accessing information on social media. Then, I can only spend more time and effort to understand the team and project progress to prevent from scammers.
Scam coins are everywhere. When you get into that very bad situation of course you will feel disappointed because all of your efforts are not been paid off but I think you may use that experience to be more careful and be more wiser than you were before. Don't trust so easily there are so many people who wants money by scams! Read and study a lot.