@Jeffro<[M]any of us will be waiting to read the postmortem by Mark Jaquith which will detail the reasons behind why the Post Formats UI had to be removed and the side effects it caused.

I too hope that these reasons & consequences are addressed ... but that's not what I read Mark Jaquith offering.

He was responding to John James Jacoby 2:14 pm on May 29, 2013, who said/asked:This really is a shame. Any opinions worth sharing on what could have been done to avoid the retraction? We had all hands on deck with this at the beginning, then it got broken up into minutia, followed by a few weeks of tuning.

What did we learn from this experience, and how do we avoid it for future releases? Maybe a post-mortem-post after 3.6 is out?

Jacoby sounds like he is talking about the organizational and operational factors, rather than a technical post-mortem of Post Formats UI in Core.

Sure, Jaquith will say 'something', but I won't be surprised if we end up knowing about what we know now.