I know the BBC thinks of itself as being the ultimate arbiter of pretty much everything, with the divine right to act as it sees fit, but do the people behind this really think it appropriate to put out an ad with the specific purpose of frightening the bejesus out of the population and telling them who's boss? That in today's world, the BBC knows everything about you and will use that information?
Yes, of course databases exist. That's a big issue in its own right. But this is just plain sinister. And deliberately so.