I also began to agree with this IEO system, so that the project will have a lower scam potential because usually on the IEO if the sales target is successful, it can be ascertained that the project will be listed in the same market. Of course we have to choose a market that already has a good reputation.
IEO in the beginning is very promising for me since i think that it would at least minimize scam projects but as i have observed recently many project is doing IEO thus making it scam prone because of abuse though there are some exceptions. IMO, those IEOs which conducted in Binance is more likely to succeed as it has full support from CZ.