Yes, I think sometimes the scam is perfected by the companies. At other times, the campaign managers do this so as to garner more profit to themselves by withholding what should be paid out.

No doubt, responses on this subject matter are going to be quite understandably subjective with the real victims of this not wanting to share their stories of bounties that ended up scamming their posters out of their rewards. I have had more than two similar experiences here with managers who ended up not paying out. Please, permit me to keep these experiences to myself and not share now. Of course, I don't expect the mangers to own up if shared here.