I have not get good luck in investing into icos and the few one that I have invested is not doing very well in the market. Icos investments is very risky and many investors have lose significant amounts of money. I don't think we can really succeed the ways people and investors are losing money through icos scam projects.
One has to do a lot of research before investing in ICO's, its true that there are scammers out there who are pretending to be the real deal, only for investors to lose their money after investing in the project. IMO, there have been successful ones which has deepened the pockets of investors and more upcoming ones which look promising. But if you are tired of ICO's there are still other ways to invest in blockchain, for example, consider Hooch, not your typical ICO but the concept is wowing, they are tokenizing the rewards ecosystem by giving their users Tapcoin and discounts off their drink purchases, hotel bookings and access to reservations at top restaurants. And because Hooch is already an existing platform which is embracing blockchain, it is something worth investing in.
The main reason why ICO has not been very favorable for a lot of people is because they are not always with the mindset of at least trying as much as possible to understand what they are getting into, doing some research and some proper digging before investing in anything and all they are just looking at is the idea and then they hop in expecting some huge benefit from that in the long run.
To get something in this life and make it worth it, you have to be diligent in what you are doing. There is no easy way to anything, and the repercussion of not doing due diligence is what has resulted to a lot of people being victim of scams.