How is this possible? Most of these ICOs are raising way more money than a tradition VC backed seed/series A round. Shouldn’t they have enough funding to limp a

How is this possible? Most of these ICOs are raising way more money than a tradition VC backed seed/series A round. Shouldn’t they have enough funding to limp along for few years? I wonder if it takes 4 months to give up on the idea or steal the funds?