And now a days, with the "your life timeline" it gets more horrorizing.
I haven´t changed to that mode and I avoid using FB for anything then talking with a few chaps.
Since I work freelance, I can´t have clients managing my time by distance, time managing is my job.
Even my MSN is set to ALWAYS online for the very same reason.
I can see how people could use such to its own advantage, but it would mean more work for me and less free time, so currently it is a no.
I´m already pissed by google, like I browsed some shoes on net shoes to choose a couple to buy and now, every other page I visit google ads do me the favor to show an ad of netshoes showing the options I browsed, feels really intrusive.