I think it is like that that the fraud project has killed almost the entire crypto market, especially with the confidence of investors who are starting to be reluctant to invest again with the current ICO project. and the emergence of IEO has attracted the attention of investors, many of whom prefer to invest in IEO that is safe from scamed.
Investing in IEO must be safer but not guaranteed profitable to all investors. Because many new exchanges are extinct, they also create thier own IEO program they make cheaper listing fee compared to popular exchange . so they can easily attract new developers to enter in them.