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 ?
When there is something wrong in that project, such as no milestone achievements, or too many delays.
At this point, im afraid to continue holding the the token. Better to sell it and change my investment.