Please post your nominations for the Best of Code Review 2016 - Diplomat category.
Tough advice in an answer, delivered in the most tactful manner.
In your nomination post, please make sure to include a link to the nominated answer. Include a short explanation of what makes that post worthy of being nominated in this category, and why it should win over the others.
Small characters at the bottom: Only one nomination per post. Nominated answers must have a creation date in 2016. Downvotes don't count. Santa reserves the right to award the top-voted nominee a special bounty as a token of appreciation on behalf of the Code Review community.