An interesting topic.. the very reason blockchain gained prominence is its decentralized and transparent approach. Bitcoin paved the way for all the cryptocurrency with this tenent and its engraved in the DNA. Having a regulator or a framework will work against this noble cause. Scam and scamsters with regard to ICO, they say as long as there are people ready to be ditched, there will be people who will ditch, simple as that.. it is the role of forum like this to spread the right message and followers have to be aware of the technology, environment and possible fraud, they should play with the risk in mind.
I recently read there were some 1500+ coins/tokens, market capitalization of many billions etc., we are in the event of making a psuedo economy sans share markets and banks, we are just beginning what we should keep in mind is the use case that we need to bring in to integrate various aspects of other economies or think totally out of the box to make this mainstream.
Don't worry about ICOs too many or too less, lets keep the evangelism to spread the right awareness.