One of my college roommates was considering running for office one day. He spent a lot of effort to keep his social media presence clean including avoiding group photos at parties. This was in 2004-2009, and at the time I thought that he was being overly paranoid. It turns out that he was right. Even if you painstakingly prune your social media history today there is always the chance that someone will be able to dig it up. The internet rarely forgets.