alt Hacker NewsThe blameless aspect of post mortem's is paradoxical. I agree with the sentiment but at the end of the day, somewhere in there, the blame is placed on one or two human made oversights or errors. If the conclusion of the PM is "This error was caused when <This PR> was submitted", then everyone's natural instinct is to go look at who authored the PR.
I guess aiming for blameless is as good as it gets sometimes.
I've always seen it as specifically being blameless of individuals. E.g. it's ok for blameless post mortems to find faults in systems, but ideally not the people that use them.