Unfortunately, this is not so easy to do. Nobody wants to be cheated and get nothing for their time spent. No matter how much we write here about a thorough study of projects, there will still be scammers who try to cheat. And its hard to insure against it.
Very much true Sir. No matter how hard we do our own research for projects that may seem legit but in the end we're still not certain.
I've happened to have an awful experience with a project handled by a very hardworking set of talented team known in their own fields of expertise. Needless to say, a large number of high ranked members were amongst those that participated. But then again, who would have known that these very team will be the cause of the projects failure.
So i guess it's not always the bounty hunters who should be blamed. In general, most bounty hunters do their job well because they've wanted to be payed appropriately.