Social media and email friends - but would I recognize you on the street?

I have been sharing thoughts, statuses and private family pictures rather broadly on social media during the past years. I'm not one of those who has 2,356 friends on facebook (have I ever even met that many people?), but I realized I do share rather personal issues with people I wouldn't invite to my home. Until now, I thought that if seeing a baby or child grow up makes someone happy, even a rather random acquaintance (but one that I like, that's my criteria for these sites), or who wants to read my random thoughts, why not? But recently, I started sorting and went through my privacy settings. What was my criteria? Do I want to meet this person also in the future? Perhaps not, but some family and really old friends just deserve staying in the loop, in my view - I trust them. Have I shared a tete-a-tete cup of coffee with this person? That felt like a better criteria, but even here, some coffees took place 15 years ago, and the person has shown zero non-facebook interest in my life, or even intra-facebook a la liking and commenting. Is the relationship mutual? I share my kids, you share yours? I've been enjoying these types of posts, but realized that beyond fun family stories, I may not have a real relationship with the "friend" at all. I'll probably never meet the kids outside of facebook. So, finally, I found a good criteria: on top of the above, would I recognize the person on the street? I realized just how many people I know better on social media than in real life. And chop went the privacy setting, at least for the time-being. It may be very German, this data and privacy obsession, but more than that, I simply wanted to think about why I "connect" and "share" - and with whom. I may change everything again shortly, but again and again, it's good to realize who your "real friends" are. And that I thankfully know and I love each and every one of you!