I don't see JaneDoe2's actions as a bit weird at all. Humans are curious by nature, females especially so! I defy anyone, given an idle hour not to do what she has done to a lesser or greater degree.
I've never even used FB, never joined nor had the desire. Call me weird but I have no desire to put my public, work, personal and/or private life(yes, I know all about the Settings, spare me the lecture puleeeez!) on full view for all and sundry on the internet. Furthermore, I don't have a yearning for putting my every waking thought on their in the hope that it will be 'liked' by others.
I do get miffed when people in work or on nights out want to take my photo, only to be re-buffed(politely initially, then more sternly after several attempts) which leads to me being labelled a killjoy, spoilsport etc.
I've seen the damage such photographs cause, along with work colleagues who've split up then one has berated the other for not changing their relationship status quickly enough!
For those that use it, enjoy it and love it I wish you all the best, whatever floats your boat. Most sports but particularly cycling, rugby(not to mention socialising) do it for me.
C'est la vie.