Does this site store user information? This website collects your name, province and any optional comments you provide for a temporary amount of time. The purpose is to provide information to its users. The two information points are the demographics of those filling out the petition and any optional opinions/comments. If comments are unprofessional they will not be publicly displayed.
When will this site delete user information? Once the petition is complete the information will be deleted. It will not be sold or used for any other purpose. The reason why this is a custom website is because sites like Change.org derive their business model from users personal information. Not this site.
Are you from the media? If so this site is not intended for you.