Maybe you are being sarcastic...

Or you've completely missed the point of the article/story. The point is lines of code are almost meaningless. In this story the person saved 2k lines of code by rewriting a rendering engine, and use somehow think that's less than deleting a 45 k line jest snapshot.

“Not much of an achievement, but” here refers to the commenter’s action, not the one in the article

Sorry, if it somehow sounded that my example is somehow more than what was mentioned in the article. Absolutely not. I think that my example also very well demonstrates that lines of code (even that isn't really "code") isn't not a good way of measuring productivity etc. My example could be considered as an example of how a code review didn't "do it's job" for what might have been a newbies mistake. But I also think that code reviewers cannot be blamed for every bad piece of code that gets through (context matters).