Please post links to your favourite answers from the third quarter of 2017 (posted between 1 July and 30 September 2017). They don't need to be somebody else's answers; you can promote your own contributions.
The idea is to compile the best answers into one or more blog posts for our currently dormant blog. You can, of course, nominate more than one answer to the same question.
(Since my proposal to reward good answers with bounties received insufficient support—only one moderator supported it, and there was a downvote to the only answer—I am trying another reward method that will hopefully also draw users to the site through the blog.)
Update: This question will remain "open" until Sunday 19 November.