Why most of the projects these days prefer IEO over ICO? , what were the lacks in ICOs that crypto needs IEO? What should we choose as an investor? Which has lower risk?
ICO's are too risky, and ripe with scams. There's little, to almost no protection for investors, so if you don't handle you're do diligence properly, you could be getting robbed, not just from being an investor but as a bounty hunter as well.
IEO is an Initial Exchange Offering, if binance is a host for launching an ICO, wouldn't you have more confidence that you're funds are in better hands, hence, less risk involved than with a traditional ICO with no accredited institutions backing their fundraising.
I would be sketchy about all coin offerings, but at least I can be assured of a exchange is involved, you have security on your side (to a degree).