It's great that TCR has a photo policy... While it does seem to be common sense, I doubt it will work.
I recommend this "real-world" photo policy for those who are really concerned: *If you do something in public that you don't want publicized - then don't do it.* Plain and simple - you'll never have to worry about something that never happened coming to light. Simon PS - If you run for government, we'll dig up a video of you from TCR claiming you practiced witchcraft.