Have you seen (or written) a post on Mi Yodeya that you thought was really silly for missing a really obvious problem? Let's have a contest to help you tell everyone about it!
This contest has one phase: Nomination and Voting. It is currently in the Nomination and Voting phase.
Nomination and Voting - ending March 1, 2018
Post an answer to this Meta post containing a link to the Mi Yodeya post you want to nominate. Posts that are already posted are eligible (no, not including Purim Torah answers).
Please link to one post in each entry. Nominate as many posts as you like in separate answers to this post.
When you see a big problem, don't wait; post a link to it here before you forget!
Please do vote on any answers to this post during the Nomination and Voting phase.
The author of the highest voted answer to this meta post will receive a bounty of 300 points after completion of the event on March 1, 2018. In case of a tie, I will just keep the points to myself.
Concept and words stolen from Meta.MY.