I'm not sure why you are downvoted for that, that's exactly what happens; the press get contacted telling them who they can't talk about. The general public is

I'm not sure why you are downvoted for that, that's exactly what happens; the press get contacted telling them who they can't talk about. The general public isn't informed (that's the point of a superinjunction) but how would they know about this anyway if they didn't know the subjects personally? Presumably there is some protocol for people who may be aware of what's censored, but suggesting that people can "accidentally fall foul of the law" is as realistic as suggesting a room of 7 billion monkeys randomly hitting typewriter keys will come up with Shakespeare.