[alasdair_]

>No one is going to pay you to tick the organ donor box, or threaten you or your family if you don't. Both of those things have happened with voting in the past, which is why ballots are secret.

It's perfectly legal to take a selfie at the ballot box showing that you voted a particular way. It's feasible that some party could anonymously pay, say, $20 for every selfie they are sent with the way of voting that they ask for. Sure, it's illegal but so would be doing the same thing if the ballot wasn't secret.

[iudqnolq]

You can take the selfie and then void your ballot. Person who paid you won't know.

If you tick a disclosure box and void your ballot, then that can be tracked.