I think all projects that are based on me have a good purpose or there is no investment intention, maybe what happens when they encounter problems and are difficult to complete and in the end their product is defective or fails so they choose to leave it.
A good project always has a clear target, when they encounter a problem of course the best solution is not to make a scam project, and the most important thing is that before making a project it must be supported financially strong and for the current size I have noticed in many discussions is a capital of at least $ 200 million .