Most of them only expect instant profits because they know the potential is huge through ICO sales. If at first I only relied on reviews from the web that I believed to choose which projects were good for me to follow. Maybe if now I prefer to join a project that only holds IEO.Even if it's not very successful, at least their coins have been listed in the market
In most cases, that is not true. If the project is honoring the timelines that have been set during the ICO, the investors in most cases will be happy to hold the tokens for the long-term. But what happens very often is that the developers go AWOL once the ICO funding is complete and the development work lags down (if not stopped altogether).
Under such circumstances, what do you expect the investors to do? At least some of them would dump their tokens and book the losses. And the current market sentiments doesn't help much. Most of the present ICOs are turning out to be scams and there is a sense of panic among the investors about it. The last thing they want is their hard earned money to be stolen by the scammers.