Not all ICOs are profitable ,, If I think we have to be really careful in choosing ICO or we will get a permanent loss, but if you are already immersed in choosing ICO, you will be very lucky because you will benefit every time.
ICO's are good especially if its successful but of course you really have to pick a good one so you will not be broke in the long run. Its not an easy money but if its a good ICO your investment will be worth it.
Also i think too many ICO launching each single day making it hard to keep track for the investors
This is why you should be very careful on choosing ICO because not all of the are real and profitable.