As social media has become a more pervasive part of everyday life, potential employers and recruiters are increasingly searching social media sites for information on candidates. As a result, the significance of the types of posts that are visible on a person's sites has become more pronounced. The Journal of the American Medical Association performed a study on medical students' social media postings, and discovered that 60% of medical schools reported "inappropriate" content on their students' sites. Despite advice from professionals and recruiters that medical students should "clean up" their content before applying for positions, most fail to do so. However, when one university taught its medical students about changing privacy settings, there was an 80% decrease in publicly accessible accounts.
Which of the following statements BEST explains the reason medical students fail to "clean up" their social media sites, but are more likely to change their privacy settings?