I mean, seriously. Why not sign the petition? It's worth a try.
This idea was floated yesterday by Eric Dubin at SilverDoctors. If you sign the petition and nothing ever comes of it, you'll have given away about one minute of your life that you won't get back. Otherwise, I don't see much downside to trying.
First, read the petition here: http://thenewsdoctors.com/bart-chilton-resign-and-become-a-whistleblower-open-letter-petition/
And then sign the petition here: http://www.gopetition.com/petitions/bart-chilton-resign-go-public-on-silver-manipulation.html
You'll note that yours truly was signatory #10.