A "private" tag doesn't magically make a public item private.
Then what's the point of calling it private? It's misleading to do so isn't it? Also, the very nature of social networks operate on the basis of filtering, without which there's no point in having "friends" or groups etc, it would just be a giant cluster-fuck like the wild west days of the early internet which to some degree is why people flocked to social networks in the first place. I'm not saying it isn't a giant cluster-fuck on FB either btw, but just because a lot of people are ignorant about how the internet works, doesn't mean that they deserve to have their children or deceased family members images trawled and publicly monetized by multi-billion dollar corporations. Yes, I realize that's exactly what FB, Google, et. all are doing, but at least they do it privately, and supposedly anonymously, that's what makes them tolerable. After all, you can't escape unless you basically shun society as a whole, because even if you don't have a FB account, someone at sometime will take your photo and tag you online without your permission. Please tell me if I'm wrong, but I'm arguing that there has to be protections. That is the purpose of governments anyways, to provide protections for its members the citizens. I think the Australian government failed on this one.