As a telltale of hoaxed events, you'll very frequently find participants who have been or are likely to have been in trouble with the law. This is the true larger context of the "known wolf" phenomenon.

There are few instances in which this can be confirmed, but I believe strongly that these people are approached with the opportunity to make their legal problems "go away". I think we see now more than ever that "selective prosecution" is quite selective and quite common, and Soros DA's would be key. The beauty is that nothing need go on the record, literally.