Atributable to fear of public exposure.
I do show my face and have even shown on occasion my male side. In the forum its arguably safer in the members only picture area. I never anticipated posting public pictures initially, I just did once intending to take them right down, but it felt so validating to see them that I left them. I now really look foward to posting them.
My Blog is probably more dangerous than the forum. Even though I set my settings so it isn't searchable or on a regular rotation with Blogspot, thanks to web crawlers and Google it may as well be.
I have had well over 3,000 visitors, dunno who they are, most don't leave even an anonymous note. The only info I get is maybe (75% of the time) where they clicked from to get there and maybe the city or state or country. Those far away frm anyone I actually know bother me not at all. SInce I live in a city of 4,000,000 people, it shouldnt bother me when inevitably one is from my metro area. What are the odds the know me.
I get their weirdest hits sometimes. People searching for slingbacks, people searching for random names I mention. My favorite recently was someone from nasa.gov Googled "women's wingtips" and got me. weird world.
My theory now is add to the chaos. The more information and pictures out there, the more there is for someone to sort through to make any sense of it. If someone wanted to read the 50,000 to 100,000 words I have typed here and in my blog the last 3 months, they could sieve the information down to one and only one person, me. But who would and why would they do that?
I have thought of doing some headless shots lately though because sometimes its about the clothes. I have a closet full, and no time when my photographer/make-up artist/wife/lover/babysitter is able to help me at a time that I am not working/sleeping/babysitting/cleaning/cooking. I have probably 20 to 25 pairs of shoes that I have never seen a picture of to see how they look on.
The resons are generally pretty simple, and a personal choice
For myself, and 'headless' photography, I have too many computer-savvy and inquiistive kids around here to take on any more risk than I already do in the areas of 'exposure', and, I have quite a lot of facial hair that totally blows the look. (Its especially a bummer because I love lipstick, and you just can't see it through all that!)
** I considered making up some kind of "All the old family photos had heads cut off so I thought that is the way it is supposed to be" but I thought better of it! :)