It is hard to stop participants from participating in these projects. As you can see, participants continue to participate and continue to increase everyday. It only show that so much bounty hunters can't determine a good or bad projects.
Good thing the below link shows the list of good projects and really helps a lot of bounty hunters.
Even though you've participated in the legit project but it won't give assurance that its price is really amazing or it pumps instantly. We still need to be patient in such a way that we are giving them time also to recover and stabilize its market demand. As more often that new project will definitely suffer a huge dump after listed since most bounty participant will dump their coin right after they received the reward.