when we talkin about IEO we must searching about exchange or market which bring IEO's Project, The project will be trusted when listed on good exchange and of course scammer will always make new inovation to join this chance, so, be carefull!
Scammers can find a way out for it but it is clear that we will have no issue regarding exchange site because if it is trusted one like Binance then no need to worry about this project. It is the exchange that holds counter party actions make us feel free to get started with IEO projects. It is an alternative to ICOs that can be modified into new projects as well. We need to stay active for new upcoming projects till that focus should be given to IEOs.