@ JonB
"No [a receipt] doesn't [help], but strangely one of the main objections to electronic voting is that there's no receipt, which seems odd." -- That's because the objectors know that *something* is wrong, but not exactly what; so they pick something just so they can have a concrete objection.
"Besides a secure receipt that holds either encrypted or no information could be used to confirm that a vote was recorded by you (abstention would have to be a vote option). In the event of disputes it could form part of the audit trail that currently doesn't exist with paper." -- **No** **it** **couldn't**. Not if the Town Hall are in on the scam, anyway.
Suppose Candidate A receives 500 votes, B receives 390 and C receives 110. These are the actual votes, remember. The announced result, however, is A 380, B 500, C 120. (Note that those figures are not so far out as to be utterly implausible. If they wanted to get a candidate elected in the face of very strong opposition, they might have to field a few extra candidates of their own just in order to split the vote.) You voted for A. You go with your receipt to the Town Hall to check how your vote was recorded, and are correctly told you voted for A. And that's as far as you can take the matter.
Even if all 499 of the other people who voted for A go and check, they'll be told -- rightly -- that their vote was for A. And because (1) they all go in one at a time and (2) there are also many B- and C-voters in there, *not one single one* of the A-voters will be the slightest bit the wiser that there are really 500 of them, as opposed to the 380 that was announced.
You could only determine that something was amiss if all those A-voters produced their receipts for Candidate A at the same time. And in reality, the proportion of voters who will actually bother to check their vote will be minuscule.
If needs be, the officials can even produce forged ballot papers in the correct quantities. And can you really be bothered to search through 380 little pieces of paper to find the one which has the numbers 1 to whatever in your own handwriting, while a Town Hall official is breathing down your neck?
By the time an election has been rigged, it's already too late to do anything about it except re-run the election from scratch. Forget about building in error correction and concentrate instead on prevention and detection.
The beauty of a hand-marked paper ballot (besides Universal Comprehensibility, and that should not be underestimated) is that the same object that was marked by the voter is the actual object that is counted. This removes a huge potential failure mode. And we can make sure that interfering with a marked ballot paper before the count is if not impossible then highly noticeable.
"I _do_ want my vote counted, the margin of error is hard to measure precisely when you never had an accurate count in the first place." -- but the problem, as I am sick of pointing out, is that *your* vote isn't the one that made the difference. It's *everybody else's* votes, all jumbled together in a great anonymous pile, that made the difference. And you most probably have to produce some form of identification to check your vote -- which means they know whose vote to show correctly.
"- If you don't have any arms, then it's hard to write a cross" -- then vote by proxy. Special arrangements can be made for disabled people to accompany their proxy into the polling booth. The point is that arrangements made for disabled persons should not impact upon the able-bodied majority.
"The count comes in quicker, look at the tension when it takes weeks to reach a conclusion" -- give me **right** over **fast** any day.
"Fewer staff are needed" -- So what? It's not as if they are getting paid.
"The counters have no loyalties" -- but that's the whole genius with manual counting! Each candidate is directly involved in the count, and none of them trust any of the others. Everyone counts their own votes and everyone else's, and the results are only announced when all parties agree. And the only way they can possibly agree is if everyone is telling the truth.