[shiomiru]

If the smiley face and the commit message's tone didn't make it clear that it's a joke, TFA explicitly ends with this:

> Gunnar in particular was the one who uncovered this bug, and despite my satirical jab in the commit message helped uncover this very interesting bug, so he’s the one who made this post possible.

Gunnar is also credited right in the same commit message for help:

> Credits to Andrew Kaster, bgianf, CxByte and Gunnar for the debugging help.

And judging from how the author of the actually broken code in question is (reasonably) not investigated or publicized, it seems quite obvious to me that the article's author is not trying to play the blame game.