ico is actually not a scam even though almost 90% failed, this was because the team from ico could not maximize the opportunity against ico, so Iico's failure was the main factor was the team. before choosing ico, a maximum research must be done and in order to be able to choose good ico, it is also a solid team.
90% = failed, and 90% = scam, that in my opinion,
if ico ends with a scam, then ico won't develop again