The social value lost is one-on-one development of friendships. Let's say I find something interesting. Without social media, I might share this one-on-one with my friends. I'll text a link to Joe, email a link to Jane and share it in person when I see Mike. Instead, with social media, I post it on my timeline. Since I'm 'friends' with Joe, Jane and Mike on Facebook, I won't share it with them individual and I lose out on actual human interaction and friendship-building. When a friends shares something with you individual, you feel like they thought of you specifically. But when you post it on your timeline, no one feels special.

Due to this, I've stopped sharing everything on social media, except for the stupidest, lowest common-denominator stuff, and even that I will first consider sharing with individuals instead of social media. I've made a spreadsheet of all my friends I want to keep in touch with along with my commonalities with those friends (music, art, literature, psychology, etc.) I send them things individually when I come across them instead of posting on Facebook.