For participate on a ICO firstly you have to look on there team and there background and There road map. A project become success with his concept if the concept uniq and very useful then you can join the ICO but look on those matter.
nowadays a lot of fake teams, we are now in demand to be more selective in choosing a project to invest. for me, I just want to invest in a project with a verified member
Yeah there are lots of fake teams trying to do an ICO, ends up just hijacking accounts of its users and hacking their balance.