Absolutely none. Big Brother already knows enough about me, why give him more ammo.
This site is as "social media" as I get.
A few years ago an Australian journalist described the addiction to social media as "technological Onanism". I share his opinion. As Angela Anthony already said, this site is about as social media as I get.
A few years back I used Facebook, but I got sick and tired of people posting their dirty laundry online, as well as I am not interested in knowing every time someone does their actual laundry or uses the restroom. So I'm with AH and DD on this one, this is as social as it gets for me online.
I have Facebook, Blurtit, Twitter (rarely use it), Ask.fm (rarely use it), Google+ (forced by google),
I use blurtit the most, and amirite.com second most. (sodahead use to be my home until they kicked everyone off with no warning earily June.)
I love to take photos and share them. Also, I like to evaluate the work of many talented people, comment or share experiences. I have a lot of services connected there for different results. And there are a lot of them for this social media on the Internet, so it's easy to find and those services include likes, reposts, subscribers, instagram followers boost (my favorite)
Facebook has me for authorization to games and other media. More in social media not.