For our safety, we should investing only in good exchanges, new exchange is questionable to running IEO.
If we don't trust the exchange, then we better don't investing on any project there.
But overall, IEO is better than ICO because it is regulated by the exchange, and the IEO will be required to fulfill the requirements.
The desperation of people makes them blind to such advises, people wants anything they can risk that could give them quick money and it is this curiosity that kills lost of investors, there are some things they could have just over looked, but in the name of benefits of doubt, they put their money into the system, gets scammed and them blame it on cryptocurrency meanwhile it was their lack of own strategy that made them fail.
Investing in projects in crypto space also requires strategies, and the simple strategy is to associate with trusted parties that are involved in it, and even when associating with trusted parties, we also have to ensure that we do our own thorough research before we get to put any penny into the project and it is only when we are sure that we invest in such IEO, because even those good exchanges too are not perfect, they might make mistake to allow one bad project to scale through their platform.