Voluntary tax

My house had a Neighbourhood Watch sticker in the back window when we moved in a decade ago. Still there (can't be bothered to get rid of it...) Similarly there's one of those metal plaques on a lamp post, faded into near-illegibility. Nobody's mentioned anything about "Neighbourhood Watch" - not when we arrived, not in the years since.
But they have kept a close eye on you
I have no doubt the entire membership of the ARRSE amateur detective club are part of the watch. (when they are not busy solving a child disappearing case).
Or determining the cause of the latest aircraft crash, vessel lost a sea, train crash, etc etc etc.

Surprised really that the 'watch' gets a look in really. Pretty mundane really.