I'm in the "threat of potential career damage" camp. I work in the entertainment industry and could put my professional reputation (and more importantly that of friends/colleagues) at risk because of stuff I've dished about here. Not that I gossip a lot, but anonymity offers me a lot more freedom than I'd have if my face was up. Like Will said above, if I found this site anybody could. And posts on this board show up in Google keyword searches.
There are LPSG members who've seen my dazzling mug, I'm not
that uptight about it. But I'm just not comfortable making it public.
So I guess that's my long-winded answer of "I would not be a member."
Or I'd just put up a dashing photo of Justin Timberlake with rubyrose lips and say such witty, smart, funny things that guys like me get so hot to trot they want to fly to Canada. 