I used to go to my local Community Centre where I was given the top copy off the pile with no identifiers at all. At that time I handed over my Voting Card and it was kept so it couldn't be re-used. After I had put my cross in the relevant box, I would fold it in half and put it in the box. It was completely anonymous. This as the same system whatever political election. As to comment about a Court Order, they were just ordinary people who had the list of names and addresses along with the numbers, although I am sure they had some kind of job title, and I do not believe for one minute that an interested party could not obtain them. I think this is an agree to disagree moment.
I apologize if this reads as insulting in any way, that is not my intent.
I also apologize generally for starting this thread as I now read my original post as political, it was not my intent, I just felt the need to vent.