On very rare occasions, there's a post on HN that I wish I could upvote so much it would pin at the top of the home page until everyone had a chance to see it.

On very rare occasions, there's a post on HN that I wish I could upvote so much it would pin at the top of the home page until everyone had a chance to see it. This is one of those rare posts: fascinating, well presented, and I can see it being practically useful for a lot of people who aren't there yet as well.