the question is - will there be time when people would trust ico/ieo projects once again, or at least try to figure out if one project worth investing in it.
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If the IEO is held on a good exchange, such as Binance, then such projects are trusted by investors. So after all, IEO has not lost the trust of investors. In such cases, there is a large queue of people who want to buy coins and they are usually not enough for everyone.
Well, right now it's not that difficult to choose IEO. just see where IEO is, then you can conclude it. however, for ICO, it seems like we can't do something like this before confirming who they are working with. however, ICO is now starting to disappear. IEO is better because it's easier to research IEO than ICO.