This is important because people make mistakes, and campaigns go awry, and some campaigners misrepresent information. When such things happen, people on Change.org should be able to easily rescind their signature, for whatever reason.
This is just a simple request for a simple feature from the people behind Change.org.
Phillip Etorma started this petition with a single signature, and won with 933 supporters. Start a petition to change something you care about.