Maya! I love that you are "cozy" here - your openness and willingness to share have made me feel like I kinda-sorta know you... and I like what I've come to know. : )
On the other hand, I have myself been reticent to share a lot because in a past life *cough,* I was a bit of an internet stalker myself for a few years. Not in a crazed way, but if a friend mused about "whatever happened to Ex-Boyfriend XYZ," I'd get on the computer with her and you'd be ASTOUNDED by the stuff we could find. I stopped, since a) I realised it was pathetic b) it didn't feel like a very nice thing to do to unsuspecting people c) it sort of creeped me out, even tho' we were the ones being creepy!
As a result, my FB page has no photos of me, I will never post a photo of my face here and I try not to share too much identifying information about myself. I did send Angie a private email with a photo of my face, partly because I felt sort of rude that she'd posted so many photos of herself while I hid behind a veil of total anonymity (not that she cared but I felt impolite) and partly because I wanted her to see that I am who I say I am - a middle aged female (ever wondered how many of the "female" posters here are actually men who get their jollies by being part of a chatty female community? I'd bet my nose that there's at least one)
Anyway, what I'm trying to say is that even though I love love love your openness, Maya, I'd completely understand if you decided to become a bit more private. I'd miss the photos and the frank talk, but I would absolutely support your choice.
And back to the original question: I know that there's no such thing as real "privacy" on the internet, but I would support an effort to make certain posts a little less viewable by passers-by.