Postal Plebiscite: Australia's Biggest Bad Elector Survey

(Note added Aug 2017: This article from April has received much interest lately.  For new comments go to Electoral Process, But Not As We Know It: Postal Plebiscite V2).

The federal Coalition went to the 2016 federal election with a commitment to hold a national non-binding plebiscite on marriage equality (aka "same-sex marriage") prior to any further parliamentary vote on the issue.  The plebiscite was, as noted here before, a bad idea in policy terms, though it was mostly successful in neutralising marriage equality as a campaign issue.  The plebiscite plan was voted down in the Senate, leaving the whole issue apparently unable to progress within this term.

The option of simply changing the law seems impossible because religious reactionaries within and supporting the Coalition won't allow it.  (They're the ones who don't understand why people keep talking about marriage equality, but would bring down the Prime Minister and/or destroy their own party even in a failed attempt to stop it.) Leaving the issue as a festering distraction til the next election isn't too attractive either, so along comes Peter Dutton with a proposal to have the plebiscite anyway, but to do it by post.  Voting would be optional.

The idea of holding a voluntary ballot that does not need the approval of parliament is not new; this option of a "fee-for-service" ballot under Section 7A of the Electoral Act was discussed in the Senate plebiscite report. The option was not costed at the time because there was no proposed legislation to implement it.