Recently came across a so-called blockchain mining project running out of the middle east that claims to use centralised computing power to mine their own coins in exchange for their own payments. The project doesn't have a vision nor does it have associated projects. Their marketing strategy is to lure uninitiated individuals into buying into the project by selling the idea that this is the opportunity to invest in a project that is at it's initial stages - a possible rags to riches story
Overall, the biggest problem with such scam projects is that there is a loss in public faith and trust with respect to the potentialities of bitcoin and the crypto space.