I’m not FB friends with any burglars, and I tend to mention holidays and the like to my friend, family and colleagues anyway. Posting it on Facebook makes no difference.
I’m not convinced that the info/data remains as close as you think it does. Perhaps you have your page locked down better than mine?
A week or so after our wedding, my sister-in-law was picking her son up from school and another mum at the gates said something along the lines of how nice she looked at the wedding she’d recently been to.
My sis-in-law was a bit freaked out by it (she doesn’t have a FB account), and it turned out that a friend of ours knew some one who knew someone and the pics ended up popping up on a woman’s facebook page hundreds of miles away that we don’t even know who just so happens to be a mum of someone at the school my nephew goes to.
There was a thing online a while ago about a bloke who’d made a fairly simple program that trawled data and matched people’s details up to FB posts and other information that they had put online (twitter feeds etc.). Basically it came up with a database of who they are, where they live and when they are going to be on holiday.
Perhaps it’s a bit tin-foil hat and all that – but there are certain bits of information that I’d rather not publicise, as I’m not sure how far it will get and who will see it.