Listed here so I won't forget and inflict a pseudonymous review on them:
Screenshots of signatures:
List of all authors signing the petition here:
The petition itself is here:
Quote from petition:
What I—we—would like to see happen is for Amazon to revise their policies regarding anonymity when it comes to writing product/book reviews and for participation in the forums. Reviewers and forum participants should not be anonymous. By removing their anonymity and forcing them to display their real, verified identities, I believe that much of the harassment and bullying will cease.