I don't know why you add Wapinter into this list, I did some his projects and almost get nothing (they paid, but worthless when listing). And also, bubbalex have some failed projects when he started doing BM job, then he improves until he has successful projects like recently.
If we examine in comparison between Wapinter and Bubbalex, then both are clearly different and in this case Bubbalex is much better than Wapinter, even though both of them have held scam projects and projects that have no price, but all of this is not the work of themselves.