There is one "small" problem around ICO's ... Frankly only few coins will be succesfull in the end.... and other people will lose money like in " DOT.COM bubble " ...
I am also for free economics but I feel that these massive raising money from ICO's without any regulations can be very bad for a lot of people...Thats why Facebook block ICO's advertising...HUGE RISK and many people are not aware of that risk in my opinion ..