I thought is was only an issue for over fearful American based airlines and crew... The AA and UA FT boards are full of stories, some getting out of hand with the captain and/or police intervening.

If the art of travel includes the journey, it's a sad day when we can't capture memories on board.

On BA in F I have always had crew offer to take photos of us, and encourage use to take pictures. Never been an issue on QF, either.