I don't know the man either, but I do recognize the veracity and passion in his statements. I agree he is a bit odd. As someone who has had to report abuse to the proper authorities, I do understand why he hasn't given up. When reporting abuse there are many obstacles, such as family and in the case of the VDs the PR firm. You have to stick with your gut. My GUT tells me he is on to something. He has not given up, which is a very typical reaction of an advocate.
Ref your #58, thank you for your kind response. My gut tells me the same: that he's one of the "second type" in my post #52, in other words, a Don Quixote. And these types do tend to be odd, not slick at all, easy to ridicule, sadly. (Whereas the circus hounds tend to be quite slick, indeed.)
My Dad, plus one the wisest bosses I ever had, told me to always to always listen to my gut. They were right. Oh, how they were right!
One caveat here, though: Some "advocate" types do tend to read too much of their own experiences, their cause, into some situations. Not the norm, but does happen. Pierce doesn't particularly strike me as one of these, but it doesn't particularly strike me that he isn't, either. I'd have to know him, I guess, but I don't.
My guess is either he's the on-the-mark Don Quixote, or he's an "advocate" with flawed perception, not a publicity hound. But that's just my humble guess.