For me i do agree with Andreas Antonopolous , the Bitcoin Boy about ICO's . It is a program just for initiators to earn money. That is why Andreas call it a shit? It will not return back investments contributed to an ICO's . For me its only one form of ponzi.
With the popularity of the bitcoin a lot of schemes are online to lure a lot of interested parties, investors and enterpreneurs to be involve with bitcoin.
ICO's was a scheme to get those people in the involvement with "Alt coins"
Imagine without a capital , you can raise a lot of money or bitcoins with ICO's because the offers are high , daily profits and a big return for investment but who would determine that your sure of your investment.
I remember other schemes like doubling your bitcoin in a few hours or days. I tried one of this site , i sent a few bitcoins then waited but no bitcoins were re- sent to me. Tried to message the site but no one answers. Rather then be involve with this schemes or ICO's , i would be involve with bitcoin mining, faucets and sure site investments.
Try my page for the sources of bitcoins ;