It's not just the F lounge. Really got my goat in the B lounge a few weeks ago over the fact people seem to think it's acceptable to use facetime, bellowing at their phone & leaving the rest of us to listen in not only to that but the crap coming back the other way.
I just cannot fathom why anyone wants me to hear both sides of their conversation (which again is typically tripe, rather than anything with any substance whatsoever - ooh look, i'm in the lounge sort of thing.)