DawnStar, your information doesn't show up on the petition (according to the site). But I can understand your reluctance to share your personal info with them.
I saw the link on the Facebook page of the Technical Director for TRON: Uprising, "Dr. Mangor". Here is a link to his page:
In one of the comments, he also provided a phone number for Disney where you can leave your feedback directly, 818-460-7477.