IEO is a safe way to reduce the risk of SCAM projects. So, definitely a selection for a project that wants to hold an IEO on an exchanger. So, I think the risk of a scam IEO is zero.
You can’t completely say that, it all depends on how strong the popular exchanges holds the platform and makes it irrelevant to some smaller ones. The problem will not arise from popular exchanges but there is a chance that small exchanges will get caught up with it.
Someone once even told me that some scammers even goes to the extent of owning an exchange to scam people, so what do you think of these ones if they come up with an IEO project, this is why we still have to also be a little bit careful in choosing exchanges to participate in, so we do not create another tension in IEO like we did in ICO.