IEOs are no doubt a safe and secure way to invest in crypto and will defiantly be the future. Not all projects can pay the exchange fee and will still go for ICO. We have to feel for such legitimate and bright projects who cant progress as ICO because of scammers who have destroyed the name of ICO.
IEO might be a safe choice in investing if we invest in IEO organized by large exchanges. In my opinion, not all IEOs are able to provide profits to investors because there are a number of new projects that do IEO in small exchangers that give investors losses because the price drops after the initial listing. Likewise with ICOs, not all ICOs are bad because some projects that do ICO also have good potential in the market