As mentioned, this part of your application can be used to decide whether a school wants to invite you for an interview or not. Schools only accept students who have been invited for interviews, so getting to this step is a huge part of the process.
7. Say something potentially offensiv _ Again, not much explanation needed on this one. You do not know anything about the people who are reading your personal statement. Assume they are very sensitive on all issues and write accordingly. Do not assume they agree with any of your political, social, or religious views.