I know that many good ICO's around and some were very promising. HOwever, there are other ICO projects to which now looks like an April Fools who's team always talk to much but in the end of the ICO period all they have to do is to be silent, list the coin of the project and then dump the project. This is why we really monitoring from these guys to keep their promises before, during and after the ICO period.
It applies to the majority of the coins, they've got our money they think they need not update and will just do whatever they want because you cannot ask refunds, so we are left to the decision of the developers and sometimes their decision is to left the group and scam people.