@Hoppyland
Interesting and a good point. I find it odd--though I shouldn't--when someone shows a photo of themselves and gives their real name or, "even worse," shows a picture of their children.
I blame the news for this fear of revealing who we are. 98% of the people are not out to get us. The news makes it seem so and that bad things are happening everywhere and all the time. Bad things do happen, of course, but if one does the math, it's not at all likely one will be a victim of what we see plastered all over the news everyday and hourly.
It's sad when a person gets shot in Texas, for example, but in what way is that beneficial for me to know (I live across the country in a city where they make cars--that's all I'm saying)? Also the information from this hypothetical shooting is not given fully and this is intentional--mark my words-- and thus leaving us with a mystery as to why it happened. Basically, we worry about it with no solution in sight.
It's a fear that is instilled in us by the media, over time, and it it is unwarranted and brought on, as I said, by the constant, terrifying, threatening news that's everywhere (omnipresent) and forced on us on a daily or hourly basis. News stations/websites would go broke if we stopped watching all the unnecessary information thrown our way. If we would pay attention only to news that was useful, then that is what kind of news organization would survive.
Technically, there's no reason to fear revealing who we are and where we live--unless it's someone who's being a jerk.