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.