At a point the team start given excuses to abide by what they promised to do or stop communicating with the community then I can sense the project is scam. How do you determine a project is gone bad and won't fulfil it promise? What criteria do you use ? or you wait for years thinking all will be well ?
There are so many reason for find out if the project is scam, one these are if the team are not active to their social channel like in telegram, Facebook and twitter, then aside from this, hyping the community is their main tools for them to get potential investors and they've always saying promises to their supporters then if the WP is copied to other project.