The images(which make up most of the post) are missing now(20210622).
https://web.archive.org/web/20200809205218/https://www.lesswrong.com/posts/A2TmYuhKJ5MbdDiwa/when-gears-go-wrong has the post with images.
I found the post well-worth reading. In fact, a critical addition to learning about Gears-level, in that it helps with when and how to optimize it's use.
Thank you for writing this much-needed piece. EA can be quick to self-flagellation under the best of circumstances. And this is not the best of circumstances.