[racer-v]

I only resort to blame to understand how a particular odd piece of code came to be

Right. The idea of downplaying "blame" in corporate culture isn't to conceal where bugs came from; it's to make it more socially acceptable to confess when you've caused a bug, instead of keeping quiet.

"Blame" culture is when people take your transparency and use it to create a scorecard against you, which can quickly become toxic.