To be honest i don't blame people for asking 100 millions if they just get more by asking it. But the investors were also greedy to think that it would be easy to rise value after so huge market caps.
Yes, its way more harder to raise 1 billion from 100 millions than raise 10 millions from 1 million because the market is limited.
Strangest is how some of these ICO's that managed 100m+ are already going bankrupt by now. How do you spend 100m in a year (not counting the price decrease)
What are these ICO's that you mean?