I'd imagine there'd be no censorship as far as that sort of thing is concerned. A circulation of work was made of some black dood openly taking a wizz outside a busstop.
The thing is with the face smudging, if u know the people, u can tell it's them. We've identified a fair few people dipping in and out of the local pub etc.
On the censorship, in this day'n'age, I would fully expect that the face and number-plate filtering would be automated.