Answer: reputation
Step-by-step explanation:
One must take care in posting to social media sites because, especially with followers, someone can take screenshots of an unsavory post. Then, the photo is stored locally on their phone (and even worse, can be automatically uploaded to the cloud, making chances of completely eradicating something embarrassing even slimmer). If this is shared around, it may hurt one's career or reputation. Thus, it would be better safe than sorry to pay attention to what you post.