I'm a moderate social media user myself. I mainly use it for work and occasionally I like a cheeky personal highlights update on Facebook.

Personally, I have been very conscientious in terms of what I have posted and uploaded over the past few years. Not only has social media become a reflection of you as a person in your personal life, it now has a huge impact on your professional life too, but is it fair? Should what we get up to in our free time have anything to do with how we are at work? And ultimately, should it cost you your job?

I found this article on Recruiting Times which goes into quite a bit of detail on just how many of us do not consider the repercussions before posting on social media. 

Interesting read.