Dear and appreciated @alokkumar121. I knew that I could count on your comment.
...ISO (Initial Steem Offering).
I must definitely add this new term to my list.
In IEO, what is it like that is exchanged since the beginning of sale so there are high chances for legitimate deal and better returns.
This is precisely the highlight of IEO and the supposed guarantee for investors.
Thanks for this valuable comment.