Replying to "Postmortems Help Address Causes of Errors" [Dface]

I wonder what uses are there for sharing your ideas from the postmortem. Also, what ideas could they be about? Ideas about the underlying cause? Ideas about fixing the underlying error? Also, what would critical feedback do? Is that what’s useful?

What is “other criticism”? Is that criticism that warrants another postmortem? Would criticism help with investigating an error? Does that count as other criticism? Does all this have to do with you being the one investigating errors? Like, you gotta figure out what’s success or failure including in postmortems. I dont think you gotta do it alone but it still has to make sense to you.