Exchanges
Community.
Project Team.
Whitepaper
Those are common metrics in assessing the quality of an IEO but you could end up being hyped with those four alone. It is more important to consider if they have a working technology already (prototype or MVP) and not just ideas and buzz words. See also if they already have signed strategic partnerships and not just plans to sign with company X or Y.
Indeed! IEOs are very similar to ICOs. People think that if an IEO is associated with big exchanges, they must be promising. But they don't understand the big money game behind it. The larger the exchange is, the bigger fees are paid! These exchanges don't do an extensive due diligence to assess the legitimacy of that project. If anyone is investing in an IEO based on these 4 parameters, GOD help them!