I'm not very active on social media. I have only a Facebook account and none of the other like Twitter or Instagram. I use it mainly to look at what other people get up to in my own time and hardly post anything about myself or my activities. I have also set my account up so that almost none of my info shows up to people who are not friends.
EDIT: The question is directed purely at how employers might use your social media activity to filter candidates. Lets say a person is in a public facing position and posted videos and so on of their extra curricular activities (wild or not), would that actually make a difference in they way they are viewed by possible employers vs someone who posts virtually nothing on their social media accounts.
Some might say one indicates a good social standing while the other might indicate you might be unsocial.
Does your activity (or lack thereof) on social media have an effect on your perceived employability in a public facing position?