For the record, all icos are not scam.
There are still good icos that are eveb doing well as regards their icos sales.
So it's left for you to do proper research and investigation to ensure you do not invest in scam icos.
Its true that not all ICOs are scam. Many ICOs reach their target and having good project and solid developers team. I think ICOs need government regulation to reducing scam ICOs and i am believe it will increasing investor confident