I am sorry that it upset you that I was unable to share details about a bug, but I am unwilling to withhold heads-ups to the other people here running apps behind nginx just to save your feelings.
I think if you use the search box at the bottom of the screen, you'll have no trouble at all finding thousands and thousands of words spelling out in great detail what I think about bcrypt.
I am a person, not a web service. You cannot file bugs every time I don't provide exactly the comments in exactly the tone you're looking for. Or, as you're amply demonstrating, you can, but it's unlikely to do you any good.