Regulasi aren't a golden bullet against scammers. As all those things become more obvious to the general public, scammers evolve to mimic decent projects with almost impeccable efficiency. Still, the most reasonable rule of investment isn't about ICOs or IPOs, it's just about your common sense. I mean no matter what, never spend more money than you can afford to lose.
You are damn right and at the same time every penny lost will count,if you invest money you can afford to lose in 5 different projects and all turn to scam you will feel hurt,we are human and we all have our limits of endurance,instead of relying on the amount you can afford to lose its better to learn how to do better research on projects first to cut your loss short