Well most of the ICO now are scams, fake or dead. They just want to earn money and their project is really not promising. It is still better to read first the documents and also check the website if it is real or fake. Also it is good if you took research about the team and the developer, if they are really the one making the project, there are a lot of ICO now that uses name of other, to influence other people. Just be careful before investing and make sure to do a research, remember it is very risky on joining ICO, so invest only what you can afford to lose.