I don't like buying coins during ICOs, I prefer to buy after they list and the price goes down but I have a problem of investing in the right one that will yield profit because I have seen projects start to misbehave after ICO( listing on a very poor exchange, listing lower than ICO price or stop responding to some investor's questions). How does one know the right project that will yield profit to invest in or does one but gamble with coin or tokens to invest in?