I agree that it is very important to check all the information about project and its development. Not all the projects are successfull. Also it is necessary to remember that there are a lot of scums their.
A lot depends how profitable is project for people and what advantages it gives to people. It is not enought to create the project. It is necessary to realize all planned ideas.
The profit of the project depends a lot from the condtion of the cryptocurrency market. When market rise the profit of from the project increase too and many people would like to buy such tokens of the project.