Nowadays, in ICOs world there are good projects who are pushing by people who work in relationed projects about crypto y blockchain, but we need to remember that you can find people who offer this services (developers, managgers, whitters, etc), its really easy!!, but how can i have certainty about the team who are pushing a project?? In mi case, i look all profiles, and pay atention in things like: companies or project they used to work, interest, which kind of people they follow or are related. I know you need time for that, I would like to know how do you have certainty about the team who are pushing any ICO project?? 
Like you point out here most of the ICO project has over time becomes a scam making the investors lose money and bounty hunters precious time and energy promoting such ICO. I do not just see any ICO project and support it, I do my own research by going through the concept of the project from the white paper and I ask myself whether such a concept is realizable? and then I try to find out what product the project will eventually bring out. Will the product be of any use to human race? Will it solve any problems in any field of life. Who are the team members and their experiences? If after all these and am satisfied then I will go ahead and promote the project.