ICOs is always the best trend to invest right now, but ICOs is always with 50% is scam. You must read the company infomation carefully and decide to spent money into it later. Research skill is nescessary.
- Here is a thread with some advice for who want to invest to ICOs :
https://bitcointalk.org/index.php?topic=2889318.0.
Do not throw your money through the window
I think not totally 50%. For me 10% is scam. Many of the ico is they can reach their soft cap, that is why they didn't paid. The best, don't risk all your money if you are not sure in ico. Invest in btc is pretty sure profitable than others.