Seems like being 'big mad' about this is a total misunderstanding of the social norms around social network usage. You can certainly be it, but it's not productive, it impacts your health and changes nothing about the public perception of your issue (ie 'everyone does this all the time, wtf is your problem') or the behavior.

As in "Anything you do where anyone can sense you might be broadcast further than you thought. So either shut-up and shut-in or get used to it."

Remind me not to friend you :-)

Joking aside, I didn't read OP as "big mad" about this. Just a little wistful. And possibly glad to have good subject matter for a public blog post...

To me it sounded as though the social norms are different in this space. Essentially that’s the culture clash.

True in most cases, but it can be a pretty serious violation of privacy.

For example, let's say you post pictures of your family with your children on Facebook, intending to share to friends, and then someone screenshots that and re-posts publicly.

I've never tried a public-by-default social network like Twitter or Instagram. I'd be quite annoyed if one of my Facebook friends took one of my posts and published it to the whole internet. I realize it's something that can happen, but it would feel like a violation of trust.

I also think that being able to maintain semi-private spaces on the internet makes it a safer place.