Lately, we've seen that investing in crowdsales are no longer profitable due to ICO's favouring VCs and private investors. These set of investors receive heavy bonuses with almost no lock up periods at all. Consequently, they dump these tokens at listing on exchanges and crash the prices below the ICO price, resulting in big losses for smaller investors. As a result, it's difficult to make 5x - 10x from ICO price anymore.
As an investor, one of the best ways to curb this and make ICO's more profitable again is to focus on crowdsales. You have to make a conscious decision to invest in only projects with good lock up periods for VC's and private investors. These lock up periods is what guarantees that the guys with big bonuses don't dump on us. A project with good and experienced team, working product, good token metrics, use case, and considerable lock up periods for VCs and private investor should ordinarily do well in the market.