I don't think so that this ICO is a scam because they all ready invested big amount of money and got listed in many big exchange market and also invested in promotion. But this will end in cent after their ICO the token will surely dump.
Bro, where did you see big exchanges ? Do you mean scam exchanges like these in the list? By the way, there are many scam exchanges now, for example a well-known exchange as KuCoin is also scam (https://bit.ly/2N6I0AD). Bro, be careful and think before trust
