We should accept the fact that some ICO are totally a scam. It’s hard to determine whether it’s a good project that will result successful at the end or it’s considered to list of scam project.
We should consider few things before we can invest for some ICO. Better to check the quality of the project, its unique features that other project don’t have. Make some research about the real status and the reputation of team behind the project if it’s real or not.