In short, we should DYOR. Probably, a wise investors will not hastily join any projects without the proper research. If you are pointing out about ICO projects, I believe this is not new anymore. We can easily spot now if such a project is scam or not. Actually, I would agree about looking who were the teams are but do not forget the project's product if it is feasible or not.

On the other hand, there are 'other' crypto investments that we can choose from. Instead of investing in a new projects, why not invest some old , existing and proven projects?